It's cyclical. MTF goes through periods where it's doing really well, the posts and people are great, and then, usually right after a big tournament, it goes to crap for a while. People become bored or sad with no tennis to watch and don't know what to do with themselves other than troll and pick a fight.
Not only that, but I've noticed that MTF picks up a lot of new users during the summer months so add the newbie factor to the tennis ennui and you get a bumbustible combo.
Anyway, after seeing what happened between Escude and bad_gambler, people who are considering being a moderator should consider it some more.