I hate having to do this but there is a business seller operating on a private account in my category (I'm posting this on a throwaway just FYI). He's already made like a grand in a day (NO FEES!). I tried to report but the old system is gone and the new one doesn't appear to have "fee avoidance" (or similar) as an option, as far as I can tell.
I was under the impression that all the new rules (simple delivery, BFP, selling limits etc.) were supposed to stop PRECISELY THIS from occurring!