Now it's down to semantics. I will argue that BDSM is always and only about sex. It may just be that I have a wider definition of sex. It can be sex even though private parts aren't deposited into fleshy cavities. Sex for me happens first and fore most in the head. I do think that a slave submitting is in every way a sexual act, on- or off-line.
My problem is the reciept. How do I know the communication is working. It's hard enough even with two people in the same room. I had comunication issues with my ex-wife even after six and a half years of marriage. It may be that I have some serious inadequesies in comunication....but yeah...you know... to continue using the expression.... Maybe I'm not unique.
Me personally, over the net I tend to project a lot. Fill in the blanks with wishfull thinking. Since I know I have this tendancy, I fight it. But I often notice it sneaking in.
Comunication is always extremly hard in any setting. Why make it any more difficult?