I’d be curious to hear both sides of the story on the Etsy thing. I’d imagine for anyone to even know it was happening it would need to reach a level of scale/disruption that made people start asking questions or complain.

I think with most of these rules, they are there to give them some teeth incase something gets out of hand in one way or another, and are often only enforced if something becomes a problem. Alternatively, they’re used to get someone out who is a bad tenant/neighbor, and they need to find a technicality to boot them out for everyone else’s sanity.