From: Sirenia
I would actually recomend trying Powerbots Pinshop's, alot of guys have 1k+ positive trades done and are selling them for 10-12m. Ive bought pins to my accounts the last 5months from a guy there
As much as I hate to say it, he's right. PB is a pretty good place for pins, so long as you insist on using a middleman. PB's MMs are legit as long as you stick to the verified section, a lot of them will do RSGP for Pin trades for free, and any legit pin sellers will agree to use one. It's how I get my membs whenever I'm in the mood to play (read: during breaks from school)