referring to the discredited autogynephilia (sexual fetish) theory

I haven't yet checked out the new thread, but my general response to this would be to refer them to the appropriate sources that state consensus among experts on this. Scholarships is a virtue.. Or present the arguments that convinced you the theory is bunk. If the arguments are sound I can't imagine anyone being hostile towards you for doing so, you'll probably be up voted or thanked.

If not then LW may indeed have a problem.