OK ... I agree the past few posts drifted off topic a bit - but heigh-ho - we in this site should never worry about a little deviation, should we? And I wanted to provoke debate.
I agree with Tom, sex is prime when it comes to BDSM, but the form it takes might not be obvious. Sex is a GOOD thing and is prime in ordinary life too. It's just that in BDSM, sex has a broader range. And yes, it is mostly mental. Sex without the psychological aspect, even in real life, is animal lust. Possibly, BDSM without a sexual or a caring attitude is simply torture/humiliation.
So which is cyber sex? Is it just obtaining basic relief by wanking to an erotic picture or scene or by having some sub talk dirty ... or by making the sub masturbate him/herself? Or is it something else, fulfilling. arousing and completely free of any need to exchange body fluids, or do anything else with them?
Warbaby, I do agree with your sentiments. I simply feel that BDSM is sex focused. Even making a sub wear specific clothes ... the "whoelsome swimsuits" mentioned elsewhere, for example ... can be sexual, by deliberately making her (in that case) suppress her sexuality. I could be turned on by making someone do that.