Agreed. Members you hate should not be in your profile, it
would start flame wars over nothing.

Although,
if you mean a list of things(items, shows ect..) that you
dislike, then, that's fine.

Example :

DragonWings' Dislikes :

-The cold
-Rain
-Perves
-Spam

You can put a list of things you hate, if it is like:
Anoyying N00bs, Art thiefs e.t.c But if your talking about
anyone in paticular (A real person) like: I hate memberguyonBS
because he can't type in senteces and he is anoyying; Then I
suggest you don't.

Well-- depend. If it's things you hate like: Broccoli (
Example. ) Then, go ahead. But if it's people, I wouldn't.