~ I can see there being unintended negative consequences as a result of nuking trust ratings from banned users. I would support this being done say before they become a senior member or something such as that
This topic isn't about all banned (Autobanned) users, only Newbies can be nuked (meaning all their posts are deleted when they get banned). Anyone from Jr. Member and up can't be nuked, unless a Mod manually removes enough of their posts to derank them back to Newbie.
Is there a reason why trust comments cannot be edited, only deleted?
Without an edit history, it would be unclear what you wrote at which date.