It is hard, or a waste of time, to investigate/report/watch when we do not know if an account is already banned.
Maybe mark their profile page? This should be easy to achieve?
I'm not sure about that, nor what other moderators/administrators think. Currently, banned users get stripped of their signature and other profile information (implemented sometime in 2016 IIRC).
Can you see how it would be helpful to us members? If so, could you try to find out if possible please.
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Look at RealMalatesta's account.
https://bitcointalk.org/index.php?action=profile;u=321061RealMalatesta has been a good member here for years. Now sold or hacked, and spam posting.
(his last real post June 20, his first spam post under new ownership October 20)
Would this be a ban? Is this 1 way that sold accounts would be recognised?
Are there other ways sold accounts could be recognised?