I ask discobot for the tutorial and got a link to the page about Levels. Lots to read there, but I like the concept. Solves the problems of “all or nothing”, so a new user can’t message, but a long time trusted person can.
Anyway. I clicked on a link about “badges” and that link is not available. I don’t think we need them, but wondering if that was intended? Do you mean to leave them out?