I dont know if Users and Accounts can send and receive personal messages after they got banned !
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Maybe it would be good that banned accounts only can receive PMs and nothing more.
Banned accounts can indeed only receive and read private messages, but cannot reply as they are banned from making any form of 'posts'.
Really? Wouldn't this lead to trust manipulations by some angry users who already got their accounts banned?
If they are banned, it's more than likely that their trust settings would not count on any level of DT. So even if they can change who they trust or ~, they cannot manipulate the system or influence their trust score (by adding those who left them positive feedbacks to their trust list)