Free speech refers to the amendment stating that the government won't make laws restricting speech.
It has NOTHING to do with what and who is allowed on a message board.
This board could use some serious cleaning, IMO.
Free speech is a concept that exists outside of the US constitution + amendments. But this board does need cleaning.
The concept exists, and doesn't apply here. It applies to laws being created. Message board moderation is not an infringement of free speech, and we seriously need more of it.