@ Spaz - Yeah, that is one of the many problems of a 'chatroom'.
If there was to be a log of what happened in it in one day the most common word would be Hi! or Hey!, it is kind of a waste of time even bothering to say 'Hi', 'Lol' or 'LMAO!!11!!1'. Yeah you may say it at the start of a Conversation on an Instant Messenger but that is to greet someone and you then have a reasonably long conversation after that but a Chat box is usually small and if Two people are in the middle of a conversation and then another two people join in then people are just going to get confused and annoyed, then flaming starts. Pointless.
What makes you think that. Tell me if you have more than 15,000 members then I'll believe you.