Please stop kicking people from chat due to inactivity.
People want to have the chat up so you can see what others are saying, even though you don't take part in the conversation yourself. Then later, you can scroll back through all of it, see who came in or left and what they said.
It's called "idling". It's part of any chat that has regular people coming in there who can't be active all the time. How are we supposed to be active on there for hours on end?
I also think that we should have irc chat if at all possible, with a flash chat option on the website. That way we can use our own clients to connect to it and have the chat look the way we want. We can also close firefox or whatever if we're having problems with it, and also log the chats.