Aren't Elo's motivations obvious?
It could be you are actually asking why did anyone change the "approved" version. The answer is that there ain't no such thing as "approved" versions -- this is a wiki, open to edits. No one needs to ask for permission to change the page.
Nope, Elo's motivations are not obvious to me. I don't want to suffer from the typical mind fallacy here, so I used the first virtue of curiosity to get more information.
Richard Kennaway has posted about an edit war on the wiki. Richard, thank you.
Unfortunately, I've only used the wiki a little, and don't have a feeling for why the edit history for an article is inaccessible. Is the wiki broken or has someone found a way to hack it? Let it be known that hacking the wiki is something I'll ban for.
VoiceofRa, I'd like to know why you deleted Gleb's article. Presumably you have some reason for why you think it was unsatisfactory.
I'm also notifying tech in the hope of finding out what happened to the edit history.