I'm not on because...I'm actually incognito.
I'm REALLY a secret undercover double agent (*insert Larry/Adam's version of M.I. here*), and I just keep my whereabouts hidden as all costs. If you find me on any of those chat things...then I'd have to kill ya.
Besides that I'm on SO many of those things, and seem to be on SO many peoples' lists, that I just had to make a decision to block myself to keep the beeping and chatting down to a dull roar, sorry!
Same type of reason I typically turn down *everybody* who tries to sell me Mary Kay, candles, cookies, popcorn, candy, Tupperware or any of the other myriad things people do on the side... I'm an equal-opportunity turner-downer!
*going to make a Vegas in/out list now*