I used to contribute mostly to the Esperanto Wikipedia, where I am an administrator, but in the recent years I have been extensively contributing to the Czech version too. I also have edits in several dozens of other Wikimedia projects, often in languages which I barely understand. For a more or less complete list of other Wikipedias where I have substantial contributions, see the interwiki links (the "Languages" box) on this page. If you are interested about my contributions to the English Wikipedia, see the respective list.
On February 16th, 2015, here on English Wikipedia, I discovered Morgan Dee Voon – the alleged amateur female scientist and a possible mistress of the Czech-born founder of modern genetics Gregor Mendel – my non-existent fellow citizen and the subject of a hoax that had been a Wikipedia article for more 7 years, 10 months and 16 days before it was removed upon my request on February 23rd. At the time of the deletion, it ranked 11th on the list of discovered hoaxes by length of existence. The discovery was actually a confirmation of my hypothesis that, using an algorithm, I am able to find more hoaxes like Haď Čarém (discovered by my friends some weeks before) in a single evening. Some months afterwards, the hoax discovery got into the headlines of regional and on-line media.
