I started RP, not counting "Let's Pretend" sessions in the back yard with the neighbor kids and sticks for swords, in 1977. It has been my main hobby in one form or another ever since. (Reading is not a hobby ... it is nurishment.)
I tried SL in 2007 and it was over the pay grade of my laptop at the time. Happily I tried it again a couple of weeks ago and there are fewer (actually, NO) griefers where I roam ... but, also, precious little RP of any kind, even "bad" RP.
This all matters because I think I know from RP ... and I came to SL after 2.3 years on WoW left me brutally bored. No good R