I think in this case MMO is another word for “people will people”.
IRL people talk behind each other’s backs, online they sockpuppet, spreading rumors and half-truths, or even outright lies. It’s always been like that, but places like Wikipedia have better transparency tools to track them down, better than trying to track what some people talked about over a cup of tea, or while walking their dogs in the park.
If you enjoyed doing translations of pages, I don’t think you should stop just because “people will people”.