This looks interesting. I am not sure if I am going to use this, but I see at least one use case for my tool. Club admin can send message automatically to multiple users under his profile once logged to my app through your oauth token - ie to infor all players playing specific match or recruit more players to some match. Posting of messages would need to be somehow limited to avoid spam so it requires some analysis. But Oauth can support this. Other thing can be POST messages to update club members.
So I am for implementing it (but please first I really need club matches resources :-) )
I would love to create a button "Continue using Chess.com" on my website (similar as Facebook has). Would this be possible?
If you need advice on how to implement this, I'm more than happy to help.