Yes. Permabanned users should be shown publicly in my opinion, but I'm not sure whether the reason should be stated. It's become very annoying that some people are reporting users who have already been banned and this both a waste of time for them and the staff who have to handle them. If permabans were already shown then this would stop and save everyone's time.
No. That would kind of defeat the purpose of a ban, and they'd likely just abuse the message function if they were still allowed to PM. The only exception I could think of allowing would be to PM staff, but I really don't want to be spammed with dozens of PMs a day from irate users who ant answers that can already be found (or things could be changed so they're given them).
Then please add in your already to do list for Theymos, might be we again get lucky in the same way the "1 merit" is introduced to become Jr. Member.
I already did:
But theymos put it in the "No. Or not yet" category:
No. Or not yet. Or the idea would need to be significantly modified.
Though he said the same about the merit requirement for Juniors and that happened so hopefully he his mind can be changed.