Wonder if you could ask them before the round ends, "y'all wanna play another?"
The good thing is that the prior experience of lesser-known and more-famous online communities/media outlets has given the next entrant in this space plenty of accumulated wisdom to capitalize on.
Paywalls are part of the solution but they can't be the only one because there's always the tradeoff there between making the cost high enough to weed out the majority of bots and fly-by-night spammers, but also low enough that it's not a significant barrier to entry for community growth.
You can start with some basic Code of Conduct that let's say Github, Reddit or Twitter uses - no need to reinvent the wheel. Then you can modify it as time goes to suit what's working or not for your community.
If you have a good model for iterative improvement that puts the user in the loop somehow, it'll be reflected in your engagement stats.
And maybe a 'did this person show you their penis?' feedback toggle for good measure.