I'll start from the bug result:
Having the name "Community", with 1 rep, is causing confusion when the user has lots of content and activity on the site, especially for new users. Also, the user could easily choose some offensive name.
This happened as result of the user changing their name on a site where not suspended and choosing "Copy to All Sites", and the change propagated to the site(s) where they are suspended.
Can the name change please be blocked on the sites where the user is currently suspended?