The only really annoying thing is stupidity. Profanity and Spam are merely two common ways of using stupidity.
Most of the people that use profanity are doing so for the "shock factor". You know, the way little kids go "omb he said the F-word!". All "profane" words have actual meanings, and if they're used properly I don't have a problem with them. A (-) is a female dog. (-) is a verb meaning to have sex with something. (-) is short for "condemn". However, all these words are often used for their "shock factor", and are therefore filtered. If you want to express the same message, just use something that means the same thing; "Condemn you!" sounds cooler anyway. If you're going for the "shock factor", well, go hang around with some 10 year olds, they'll love you.
Spamming is hard to define. It's most commonly associated with meaning "posts a lot". I see it as "posts more than thinking". If someone posts every 30 seconds but their posts are well thought out and intelligent, they aren't a spammer. If someone writes a post of completely random, meaningless junk every day, they are a spammer. Think before you post, please.
In conclusion, I think neither "spam" nor "profanity" are bad. They are both just tools used by the uneducated.

Derby: Filter bypass removal. You already knew that you could not bypass the filter for any reason.

Radium: I left one letter of the word! That's hardly a bypass.