I'd like to meet:
Real people.
Preferably with something in common. I don't play the MySpace friend-collecting game. I also don't promote your business or whatever just because you send me an invitation to do so.
Interesting bands/musicians.
No corporate radio music, no untrained hacks jerking around, not even professionals playing safe, unchallenging music. Examples of awesome groups I've found on MySpace: miRthkon, Dysrhythmia, Bubblemath.
Dear enthusiastic bands/musicians, do not send me a friend request if any of the following apply to you:
you cannot read music
you repeat sections over and over
all of your songs are in 4/4
you don't understand how to jam in 5/4 or 7/8
you think that "polyrhythm" refers to a drumming parrot
your idea of "experimental" is making weird sounds on a synthesizer
you are afraid of dissonance
Seriously, you're just wasting both of our time.