1. Agreed on the chat. When a thread starts reading like a conversation, and people are all posting at once, it's time to turn it into a chat session. Well I don't know if it would be possible to "turn a thread into chat" (that would be cool though), but you know what I mean. I personally am not much into chat, but I can think of some scenarios where it might some in handy even for me.
2. I, as a rule, don't use any sites or features I have to pay for, and I think the vast majority of the population feels the same. But just out of curiosity, marc, what kind of extra features did you have in mind? If it's over and above what we get for free now, and it's stuff I have no interest in or need for, I wouldn't care what everyone else does.