Reddit needs to convert their model to financially compensate moderators of subreddits based on the revenue ads on that subreddit generate.
In return, moderators need to re-agree to a set of terms that align their incentives towards being impartial and fair towards the users of those subs.
Mods who agree could stand to make good side-hustle money (maybe even full time job money), and Reddit could obtain a method for showing their future shareholders that they're in control of the revenue channel.
Could run this program out of a spreadsheet until the code gets written to automate, and IMO this is important enough to pay the lawyers and accountants to figure out the details.
YouTube does this, Twitch does this... it's absolutely feasible, and everybody wins.
Hell, if you want to be tricky, you could set up some kind of currency market (probably avoid crypto but if ever there was a legit use for it...) that mods get paid in that they then sell to advertisers for space on their respective subreddits where Reddit gets a cut (I assume this resolves some amount of the labor/employment issues, but IANAL), but that's something you do after you put out the fire.