Well- BDSM as a paraphilia would likely have affected some people here negatively for over 6 months in the sense that- paraphilia refers to sexual preferences or fetishes that exclude normal activities, i.e. if you can't get turned on/get off from vanilla sex- it's considered paraphilia.

Personally, I think I've fallen pretty close to that category. I would find it pretty hard to be aroused by "normal" sexual activity at this point. I suspect that will only likely get worse for me with time. Not that I'm complaining :-P