What data is shared by OP to RP?
I've read the protocol specification, but I want it spelled out in plain English not geek/protocol-speak.
Searching around the website only points to the aforementioned protocol specification. I think explaining what exactly is shared between OP and RP should be detailed and published on the website.
Toki Tahmid commented
I read on a comment that the data shared is done "according to settings," so a little pointer to where exactly those settings (specific to OpenID or otherwise) are in popular OP would be more than helpful.