@RDC Look at it this way.
What I'm saying is that there are people out there that consider what goes on on these games as personal or related to their OOC personas, up to the point of being unable to tell the difference between an IC relationship and an OOC one. Meanwhile there are others that view this entirely as roleplaying characters and wanting to keep their OOC selves separate from it.
"People roleplay things they like" is a very general statement. Yes. People wouldn't do it if they didn't enjoy it, but that statement dodges the greater question of "Is TS between the players, or is it between the characters?" which, as you've shown, not everyone is on the same page.
The gotcha here (or the tongue in cheek danger zone of this thread) is that for all of the big talk about "it being about the characters" there's a lot of hiding the evidence, covering it with litter, fear of witnessing, and aversion to other players seeing it, which if it is all IC there would be no shame of.
There are players that dont police the OOC bleed, or worse, are so comfortable with the concept that their characters are essentially THEMSELVES that one should question:
Is it an IC romance scene, or two human beings on opposite sides of an internet connection getting each other horny?