@Paige208 My biggest takeaway from your last description update is that the primary purpose of your Airbnb listing is actually to send more traffic to your personal webpage for event rentals. This doesn't really help your case, because it still looks quite easy to avoid the higher charges by making a 2-night Airbnb booking and just doing the event anyway. Also, Airbnb's Terms of Service don't allow you to use their platform to shift business offsite.
As a regular reader of this forum, I'm sure you already know that any mention of fees and fines in the House Rules is just an empty threat, because Airbnb does not charge them on your behalf or collect an actual deposit. The kind of guests who misrepresent their intentions to throw a party, they know that too - it doesn't seem to be an effective deterrent.
You've mentioned before that you have a lot of experience managing event rentals, so I can understand your interest in integrating that expertise into the Airbnb project. But once again, this is just not a compatible platform for that. If you want to avoid uncomfortable experiences like this in the future, I think you'd have to re-tool your Airbnb listing to be 100% accommodation, and set the appropriate parameters for that (lower occupancy, longer minimum stay, no unregistered visitors allowed, no mention of parties or events whatsoever, no plugging your other business). There are other sites you can use to keep event business coming in, but the guests who search Airbnb for that purpose are bad news. This site has a reputation for being the easiest one to get away with dodgy parties - no deposits, no real repercussions, nightly rates instead of hourly, no house staff on site to keep things in order, hosts who are easily fooled and intimidated by fear of bad reviews. Your current guests will most likely be 30 more people spreading the word about that, which is not good for your event business.
The question is, if event trade is recovering from the pandemic slump anyway, do you really want to be running an Airbnb on the side too?