I support having a list of banned users and the reason for them being banned.
However, the email suggestion I disagree with.
Consider the case where someone is falsely banned for scamming, their personal email is now released for people to abuse.
Secondly, it is unlikely a scammer created their OSBot account with a non-throwaway email address anyway, and even if they have, they will just make a new account after this rule is enforced.
Even if the scammer did create an OSBot account with a non-throwaway email address, what are you going to do with that information?
I'm pretty sure doxing them is illegal
Hacking their email is illegal
So all you have done by releasing their email address is cause the above.
Regardless of those points, it is probably illegal for OSBot to release that information in the first place.