I mean there is this guy in semiPro Wushu that wont stop spamming and cursing. I tell him to shut up and he starts giving moral lessons and more cursing. Is there any way to block him, I mean hes taking the whole screen up with text.

Is there anything we can do to stop this.

I think their may have been a script that allowed you to ignore people, I'll take a look for it.
Besides that there isn't, you can use /chatlines 0 to disable chat, but you won't be able to see what anyone else is saying that way,

Oh I didn't know that thank you very much.

Found the script, it's old so it may not work.
http://forum.toribash.com/showthread.php?t=35158

Oooooh Ill try this out thanks allot man

I believe you can do this, but it might only be for the forums.

Go to User CP
Go to Edit Ignore List
Type their name in, and hopefully it works in-game.