This is a self-hosted version of Discourse, configured for the least possible amount of data-gathering/retention. If you login with a third-party service, I end up with no data on you except your email address. If you create an account here, I retain your email and a hashed password, which you can delete at any time from your account settings. I retain web-server logs for a week for forensic purposes in the event of a hack or bug, but these are not otherwise scrutinized, retained or analyzed.
As to house rules, mostly it’s Wheaton’s Law, which is to say, “Don’t be a dick.” Snark’s OK, provided it’s not meanspirited, and I make that judgment call. No spam. Be kind, informative and/or funny.