Board Thread:Support Requests - Community Management/@comment-4639720-20190720231807/@comment-1038387-20190722212338

It's not rude. It's a rule. You can contact an admin that blocked you once on their wall on Central. They don't owe you a reason, or even a reply. If they don't want to reply, you've got to accept that and move on. Continuing to contact the admin can be interpreted as harrassment, and land you in more problems.

For more info, see User blog:Sannse/How You Can Work Through an Admin Dispute