Dazz's point about there being children and families that play this game is honestly my favorite so far.
I don't know if the solution is negative reinforcement for negative people or positive reinforcement for positive people, but one of the things I think would help this game the most is opening it up to its originally intended audience. Not the intended audience of College Aged+ Adults who are looking for a fun way to relive their childhood, but the audience of kids and families who love Disney who may have no other way to get to the park. We always talk about how there's no one on, how the game isn't what it used to be, and other related issues. I think the easiest and possibly most obvious solution to these problems is to make the park more family friendly, as it used to be and as Disney remains to this day.
I personally know so many kids and families that I would love to recommend this game to, but currently feel uncomfortable doing so because I don't know if I would be opening them up to the toxic parts of the community. The best part, to me, about VMKclassic was the fact that it was somewhere safe I could play and have fun as a kid, hang out with friends, based around something I love (disney). As of now, I would only feel comfortable letting kids I know on this game if I was with them the entire time.... just a thought. I know people feel ownership over their little corner of the internet, but this is a corner that is supposed to be open to everyone, ESPECIALLY children, right?
IDK at this point I see the need for BOTH positive and negative reinforcement for this community... (this as an educator who works entirely in Applied Behavioral Analysis) We can say "you don't need an incentive to be an adult" but honestly, yeah, we all do. It's a psychological principle that positive reinforcement works better on a more generalized, longer term time schedule than only Negative Punishments when a rule is broken. Incentives for the behavior you want to see is how changes in behavior are achieved.