I cannot speak for other members, Omega_Female, but I have a moral code which I try to follow, and sometimes even succeed in following. As for the specifics of my and Fluorescent's, um, recent little discussion, let me assure you that a lot of it was actually conducted outside the forum. In my case then, at least, you don't know the whole truth.
Still I tend to agree with what you're saying, in general terms. There is a point when a person should not be considered to be fully responsible for his (or her) own actions, and we should all try to remember that, and spot any such individuals if possible, and treat them accordingly. Unfortunately, that's not easy for anyone.
And in any case, and in this particular one, it's over and done with, and I'm trying to be more moderate with my remarks.