Has been suggested multiple times, would be an ok idea, except the website will lagg more and it will be used mostly to Spam/Advertise.
It would b great if we would have a Shoutbox or chatbox
well, you could avoid spamming by setting a waiting-time of at least 5 seconds between the messages
so if i say "Hi" i gotta wait 5 or 10 seconds till i can write something again
and if someone wont follow the rules ( no spamming No advertising and such things) just permaban him from the chatbox, after a few bans it will keep the spammers away.