What people share here is unusually exposing — a diagnosis in a health note, a tradition they practise quietly, a report about someone they still see weekly. A page of legal prose does not answer the question anyone actually has. So this starts as a matrix instead: pick who is looking and see exactly what they get.
The person holding the room on Thursday. They need enough to run the room safely and nothing that would let them build a picture of your life. Attendance and safety are the only defaults in this view.
A privacy policy is mostly a list of permissions a company has given itself. These are the opposite — each one is a thing we could do, that would make money, and that we are saying no to in a place we can be held to.
All of these live in your account and none of them require writing to support. A right you have to request is a right with a gatekeeper.
The formal notice has to exist, but it must not bury the matrix above. Four headings, each one paragraph, each pointing to the full text in our Terms & safety rather than expanding here.