Where did you see? I looked at revisions and noticed that the recent revisions were in 2013.
Re:P = NP [pdf]
by madcaptenor on Wednesday December 04, 2013 @06:56PM
(#6851527)
The original version is from August 2012. I didn't look at the revision history. In any case, having that long of a revision history (31 versions!) also seems like a red flag.
Ah - I see now. Gotcha.