WHATS beef?!?!

Okay so can somebody tell me why myspace and facebook are beefin? I think they're both ruining theit sites because there are no boundries. It seems as if they are the same site, its like damn can i get some uniqueness from some where, if i ran either sites i would make everything like it used to be, where we can distinguish the 2. So the creators of facebook and myspace need to fight so we can get the originals back lol.