For most people, ALT.com is THE place for kinky/BDSM personals. Now I see that there's more to it of late, and it appeals to many different fetishes.
If you have BDSM/goth/fetish traffic, I'd send it to ALT. I personally would still use AFF for all of my straight/non-fetish traffic, (i.e., single girl site or teen sites).
I've been a member of ALT.com for years. Fun times! Many of the users won't go anywhere else, so retention is not something you'll be worried about, because when freaks like me get together in one place, we stay there.
