"Ban" emails that are verified?

[frm]

I don't mind if people use anonymous email services like proton.me.

What I do mind is them verifying their email and immediately posting.

I'd like to put these users into a group "Post content without approval"→Never. This way, they can post and I can moderate or ban without it hitting the public view.

I know I can do various things like make them upload an avatar, etc., but that just makes it harder on all other users.

Or, any other suggestions from shady email providers?
"Ban" emails that are verified?

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