@Setanta,
Your post makes sense and deserves a response.
Pornography is fine with me. I don't have to look at it if I don't want to. Bring it on. I have ignore and it works fine for me. I may want to share my opinion with a porno poster if I'm offended.
Spammers aren't here for discourse at all. They're here to sell me something. I don't want to be solicited on a message board, so I support that they are ejected.
I do NOT support Pamela. I support her (and MY) ability to express opinions - even though I disagree with hers and others'.
When we start deciding what we consider racism - or hate speech of other stripes - and through pressure or some other seemingly benign coersion, something uglier happens. IMO.