Oh wait, is it new that 500 krill points are required? I found a
list on the SwC site where it says that only 1 krill is required to access the chat.
it's new as of several weeks ago, and is hopefully only a temporary measure to deal with some chat abuse issues. they didn't bother updating the krill rewards page. you'll see the real 500 krill limit if you try to chat at the table and haven't earned enough.