So far both cases were for events promoting a specific product. They were in the grey area for sure (this one less so) but they were both in the same grey area.
So yes, now I will definitely not use them for anything related to me trying to sell something, but I wouldn't have anyway, and continue using them for actual meetups based on common interests.
I am not questioning whether OP did something wrong; If he did, as a paying customer (and first offender), I would anticipate some kind of notification email, or something at least.
Sure, for repeat offenders: repeat notifications, then close account, refund adequate part of payment and that's it. You should never irreversibly delete someone's data. Moreover when he's paying you.
So yes, now I will definitely not use them for anything related to me trying to sell something, but I wouldn't have anyway, and continue using them for actual meetups based on common interests.