22 September 2023

• curprev 13:2113:21, 22 September 2023‎ C. A. Russell talk contribs‎ 208 bytes −43‎ don't redirect to section about the original circumstances; the "cobra effect" is synonymous with the broader phenomenon—not just the original setting and outcome undo Tag: Redirect target changed

14 May 2022

• curprev 23:1423:14, 14 May 2022‎ 1234qwer1234qwer4 talk contribs‎ 251 bytes +65‎ Added ((R printworthy)) and ((R to section)) tags to redirect undo Tag: Twinkle

21 July 2021

• curprev 14:0814:08, 21 July 2021‎ Apokrif talk contribs‎ 186 bytes +45‎ Category:Naja Category:British India undo

18 April 2021

• curprev 14:2814:28, 18 April 2021‎ Emanuele676 talk contribs‎ 141 bytes +11‎ ←Changed redirect target from Perverse incentive#Cobra effect to Perverse incentive#The original cobra effect undo Tag: Redirect target changed

29 March 2021

• curprev 04:1104:11, 29 March 2021‎ Guavabutter talk contribs‎ 130 bytes −27,259‎ Merged Cobra effect and Perverse incentive, as well as adding some minor additions and changes to grammar & organization undo Tags: New redirect Visual edit
• curprev 04:0604:06, 29 March 2021‎ Guavabutter talk contribs‎ 27,389 bytes +18,209‎ Merged Cobra effect and Perverse incentive, as well as adding some minor additions and changes to grammar & organization undo Tag: Visual edit

12 March 2021

• curprev 10:4510:45, 12 March 2021‎ DesertPipeline talk contribs‎ 9,180 bytes +147‎ →‎Carbon credits for HFC-23: Replace colloquialism →‎Hacktoberfest 2020: Use neutral term for free (libre) or open source rather than simply referring to it as "open source" undo Tag: Visual edit

16 February 2021

• curprev 02:0402:04, 16 February 2021‎ 129.7.0.56 talk‎ 9,033 bytes +94‎ No edit summary undo

1 February 2021

• curprev 21:1421:14, 1 February 2021‎ H.bloomerlaw talk contribs‎ m 8,939 bytes +48‎ Added that this is the same as a perverse incentive undo

31 January 2021

• curprev 21:4521:45, 31 January 2021‎ Keith D talk contribs‎ m 8,891 bytes −29‎ date formats per MOS:DATEFORMAT by script undo
• curprev 16:4316:43, 31 January 2021‎ 2601:190:4202:7830:6486:94c7:7a98:abb5 talk‎ 8,920 bytes +3,648‎ Added Hacktoberfest 2020 as an example of the Cobra effect undo Tag: Visual edit

28 January 2021

• curprev 14:5614:56, 28 January 2021‎ Martinevans123 talk contribs‎ m 5,272 bytes +17‎ +link undo

22 January 2021

• curprev 16:4216:42, 22 January 2021‎ Dave.Dunford talk contribs‎ 5,255 bytes −104‎ l/c; second picture doesn't add anything undo

16 December 2020

• curprev 16:3616:36, 16 December 2020‎ Tom.Reding talk contribs‎ m 5,359 bytes +3‎ Enum 1 author/editor WL; WP:GenFixes on undo Tag: AWB

7 December 2020

• curprev 12:1412:14, 7 December 2020‎ Monkbot talk contribs‎ m 5,356 bytes −92‎ Task 18 (cosmetic): eval 8 templates: del empty params (8×); del |url-status= (1×); undo Tag: AWB

4 December 2020

• curprev 19:4619:46, 4 December 2020‎ Aungookingofcelestials talk contribs‎ m 5,448 bytes −1‎ No edit summary undo

30 November 2020

• curprev 20:0820:08, 30 November 2020‎ Juan Anselmi talk contribs‎ 5,449 bytes +41‎ No edit summary undo
• curprev 20:0120:01, 30 November 2020‎ Juan Anselmi talk contribs‎ 5,408 bytes +64‎ No edit summary undo

28 November 2020

• curprev 23:1323:13, 28 November 2020‎ DavidWBrooks talk contribs‎ 5,344 bytes −182‎ we don't want to list every article about the unintended consequence of some action - that would be endless; need to be more specific undo
• curprev 23:1323:13, 28 November 2020‎ DavidWBrooks talk contribs‎ 5,526 bytes −117‎ remove not-very-related item from see also undo
• curprev 23:0823:08, 28 November 2020‎ DavidWBrooks talk contribs‎ 5,643 bytes +31‎ add it back in, transparently undo
• curprev 23:0823:08, 28 November 2020‎ DavidWBrooks talk contribs‎ 5,612 bytes −27‎ wikilinks should be obvious/transparent - that one certainly wasn't undo
• curprev 19:0719:07, 28 November 2020‎ JPxG talk contribs‎ 5,639 bytes +19‎ No edit summary undo
• curprev 12:0812:08, 28 November 2020‎ 77.58.104.73 talk‎ 5,620 bytes −565‎ →‎Effects in history: The four pests campaign isn't really a good example, it's an entirely different case of ironic effect. undo Tags: section blanking Mobile edit Mobile web edit

29 September 2020

• curprev 12:4512:45, 29 September 2020‎ DragonflySixtyseven talk contribs‎ 6,185 bytes 0‎ full colon undo

10 July 2020

• curprev 19:3519:35, 10 July 2020‎ DavidWBrooks talk contribs‎ 6,185 bytes −1,127‎ Reverted good faith edits by Isaacmayer9 (talk): Much as I love Discworld, a pure fiction example doesn't belong in this article (TW) undo Tag: Undo
• curprev 19:2219:22, 10 July 2020‎ Isaacmayer9 talk contribs‎ 7,312 bytes +1,127‎ →‎In media: added another example undo

4 July 2020

• curprev 05:0805:08, 4 July 2020‎ Snagemit talk contribs‎ 6,185 bytes −69‎ No edit summary undo
• curprev 05:0805:08, 4 July 2020‎ Snagemit talk contribs‎ 6,254 bytes −14‎ No edit summary undo

10 June 2020

• curprev 13:0313:03, 10 June 2020‎ DavidWBrooks talk contribs‎ 6,268 bytes −166‎ remove mention of German-language book, not much use in the English-language wikipedia undo

8 June 2020

• curprev 19:3219:32, 8 June 2020‎ 104.176.240.32 talk‎ 6,434 bytes +25‎ →‎See also: added relevant page undo Tags: Mobile edit Mobile web edit

23 May 2020

• curprev 03:5503:55, 23 May 2020‎ 98.178.230.67 talk‎ 6,409 bytes −9‎ →‎Effects in history undo
• curprev 03:5403:54, 23 May 2020‎ 98.178.230.67 talk‎ 6,418 bytes +9‎ →‎Rats in Vietnam undo
• curprev 03:5303:53, 23 May 2020‎ XRENEGADEx talk contribs‎ 6,409 bytes 0‎ Reverted 3 edits by 98.178.230.67 (talk) to last revision by Rockpods (TW) undo Tag: Undo
• curprev 03:5303:53, 23 May 2020‎ 98.178.230.67 talk‎ 6,409 bytes +7‎ →‎Effects in history undo
• curprev 03:5303:53, 23 May 2020‎ 98.178.230.67 talk‎ 6,402 bytes −6‎ →‎Rats in Vietnam = undo
• curprev 03:5203:52, 23 May 2020‎ 98.178.230.67 talk‎ 6,408 bytes −1‎ →‎Effects in history undo

13 May 2020

• curprev 17:4317:43, 13 May 2020‎ Rockpods talk contribs‎ m 6,409 bytes −167‎ Sorry, I edited the wrong article, I am removing my edit. undo
• curprev 17:4217:42, 13 May 2020‎ Rockpods talk contribs‎ m 6,576 bytes +167‎ I added new Sources. undo

12 May 2020

• curprev 21:4621:46, 12 May 2020‎ DavidWBrooks talk contribs‎ 6,409 bytes −905‎ there's no good evidence the pig problem is a cobra effect undo
• curprev 21:4521:45, 12 May 2020‎ DavidWBrooks talk contribs‎ m 7,314 bytes +130‎ add reference undo
• curprev 20:3620:36, 12 May 2020‎ MisterSanderson talk contribs‎ 7,184 bytes +66‎ →‎Chinese Four Pests Campaign: UNSOURCED undo

10 May 2020

• curprev 08:5208:52, 10 May 2020‎ Puduḫepa talk contribs‎ m 7,118 bytes +4‎ m undo

7 May 2020

• curprev 16:5816:58, 7 May 2020‎ Pablomartinez talk contribs‎ m 7,114 bytes −51‎ Reverted edits by 108.72.242.229 (talk) (HG) (3.4.10) undo Tags: Huggle Rollback
• curprev 16:5816:58, 7 May 2020‎ 108.72.242.229 talk‎ 7,165 bytes +51‎ No edit summary undo
• curprev 16:5616:56, 7 May 2020‎ Serols talk contribs‎ m 7,114 bytes −12‎ Reverted edits by 108.72.242.229 (talk) (HG) (3.4.9) undo Tags: Huggle Rollback
• curprev 16:5516:55, 7 May 2020‎ 108.72.242.229 talk‎ 7,126 bytes +12‎ No edit summary undo

31 March 2020

• curprev 19:0819:08, 31 March 2020‎ Keith-264 talk contribs‎ 7,114 bytes −17‎ →‎top: Copyedit (minor) undo

15 March 2020

• curprev 00:4100:41, 15 March 2020‎ Notreallydavid talk contribs‎ m 7,131 bytes +24‎ No edit summary undo

12 February 2020

• curprev 21:0121:01, 12 February 2020‎ 72.48.245.66 talk‎ 7,107 bytes +3‎ →‎Pig eradication in Georgia, US undo