This user tries to do the right thing. If they make a mistake, please let them know.

This user believes that the meaning of life is to live a happy life.

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This user has made way too many contributions to Wikipedia and knows this is a meaningless statistic.

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This user recognizes the importance of citing sources.

This user is bold, but not reckless, in updating pages.

PhD

This user has a Doctor of Philosophy degree in Physics.

This user has written or expanded 210 articles featured in the Did You Know section on the Main Page.

This user's favourite subject is materials science.

My wikipedia editing has a tendency of spreading: I started with writing a dozen of full-length articles on materials science, then moved to other topics, mostly for the DYK project. These activities dragged me into reviewing articles (DYK, WP:GAN and occasionally WP:FAC) and eventually transformed me into a kind of wikignome – going around thousands of articles, cleaning up formatting and vandalism, adding references and figures, fixing typos and whatever caught my eye. As of 2014, most of my free time is taken by emergency matters like vandalism, though I still write short articles during calm hours.
Here are my DYKs and barnstars.

I enjoy finding good pictures for wikipedia (uploaded many thousands) and improving them with GIMP, thus I spend a significant part of my wikitime at Wikimedia Commons; I also draw crystal structures.

I use this username only on English Wikipedia, Wikimedia Commons, and very rarely on a few other related Wikimedia Foundation websites. Any user pretending otherwise is a blatant impostor (example).