That is maybe an permanent Option ?- switching to invite only or approval-based memberships temporarily,
I don't think so; you can always edit group settings at any time?That is maybe an permanent Option ?
- This will definitely not always work.At the moment I'm seeing an option to remove members from a group.
If a user is removed and keeps rejoining the group you might want to consider:
- asking the person nicely not to rejoin
- switching to invite only or approval-based memberships temporarily,
- if the situation persists contact a moderator to enforce this.
it's not ideal but it's a solution at least? I hope it doesn't come to that.