[slyall]

Now I realise there are multiple people in this thread but the bookclub went from:

"My book club will not be a safe space, it is open to everyone who reads the book"

to:

"Behaving like a decent human being is an implicit, obvious rule."

to:

"a simple 'get lost' [..] you put in the effort to organize the bookclub, you have the prerogative to say who can participate "

[TeMPOraL]

Yup.

This is a way any and all small-scale social interactions work, and have worked since forever. Pushing a CoC onto this is trying to override the natural way small groups of people form, replacing it with a formal structure that's not fun for anyone except people better at lawyering and - to borrow FakeComments's excellent term - social LARPing, than actual interpersonal skills.