unlikely, unless one of the committers acts on his behalf. There are only five people with more than ten commits it's not hard to check they are real. Like,
https://github.com/nbeloglazov this guy is the top committer, if you click on his LinkedIn (which he supplies) then you can see he went to a university and Belarus and trivial searching finds
https://news.uns.purdue.edu/x/2008a/080314TopCoder.html so he is extremely likely to be the real deal (and a damn good programmer, very likely, too).