It feels like I'm being spammed, there isn't enough time to read the messages and its also getting flooded by people with the usernames flood and flooder.
Ya, I tried to implement rate limiting and failed, this was last night at 3am, so let me try again. If you code you might be able to beat me to it: https://github.com/Mashape/worldchat
I'm going out but when I get home I will see what I can do :)
EDIT: I think using websockets + node.js would be a better idea.