The community has to be based on actually knowing people and a progressive level of trust. Just like other things in society: doctors and accreditations make sure that fake doctors don't practice, keeping sensitive information is based on trust, etc. An anti-AI community has to be a real community that is based on knowing and actually working with people, and not some online thing where anyone can sign up.

In other words, it's not a social network or an amusing website with a free account. Nor is it just about photo collections. It's about supporting real people who do not want to support or use AI.