Some people like randomness, some people don't. It's usually bad if overused, though. Thing is, humor is built on subversion of expectations. Normally, in an otherwise serious game, randomness can be unexpected. The part of the brain that handles humor and the bit with shock are pretty close. But if you use it too much, it becomes expected.
Still, it can be fun to write like that. Very liberating. So I do do it on occasion. I would like to point out that in AIHB, the parts I did were actually pretty well received, because Bpj and ES are both into random humor, and DF was gone most of the time anyway. That, and it was a good excuse to have a ton of anime characters all in one RP and make a sparkly vampire janitor dude.
Anyway, so the thing is, sustained randomness is bad, but if added to an already humorous situation, it can enhance the absurdity already there. Think of it like salt: Too much is really bad, but just enough is really tasty, especially on fries and eggs and stuff! What I'm getting at is that randomness can rarely, if ever stand on it's own. Instead, it acts as a roof, built on a house and foundation of pre-existing humor.
Oh, also, another thing that bugs me is when people introduce ninja pirate zombie robots. The concept of a bunch of cool things combined was cool when it was first thought of, but it's waaaaay overdone now. Also, when people mistake satire and social commentary for randomness.

Is it just me, or is this thread mostly just for whining about things we don't like in RPs? Wouldn't it be better to actually use this thread to try and fix some of this stuff somehow? Maybe write a guide to proper use of randomness?