> but really what you're saying is that nobody wants to pay for it
No, I'm saying it's feasible. It's not uncommon to hear of people being reported by their teammates in team games for just having a bad round, and in games with cross team chat (like LoL until very recently) people would request the enemy team to report for "feeding". The SnR is incredibly low when the report button is just used as "I had a bad game and am blaming someone else". The sheer scale of reports in a game like warzone (where there are 150 players per game, and each session takes ~30 minutes) where there are 100,000,000 people playing [0] isn't feasible. Technically yes, nobody wants to pay for it, but nobody wants to pay for it in the way that nobody wants to pay to send every player the hardware required to play the game.
> Set up a very modest subscription model (like 2$/mo) to fund report checking for your game, possibly with a free tier that starts with low trust, and nuke people by credit card number.
This is a terrible idea, for many reasons. $24/year in the US is much less than $24/year in India, the Phillipines, Brazil (which is where many F2P games are popular. You're also competing against games that _don't_ charge $24/year. There is already a secondary market for video game accounts, this just ensures that a secondary market appears for games with valid credit cards attached to them (and this sounds like _exactly_ the sort of secondary market you want to discourage from your game). Having this sort of protection also doesn't weed out cheaters; CS:GO is absolutely rampant with cheaters, despite having an actual price tag, and requiring a _phone number_ for verification (it's now F2P with a prime upgrade for ranked; it's no better). You're also competing against people who are willing to pay $50/month to cheat [1] in a F2P game, so asking them to pay $2 extra to play the game is not going to stop them.
[0] https://www.eurogamer.net/articles/2021-04-21-call-of-duty-w...
[1] https://battlelog.co/store/product/315-mwwarzone-supreme-20-... - This is a cheat site,I make absolutely no claims about what is actually on the site, wouldn't recommend clicking this link.