I see he also mentions revenue sharing and running subreddits as a business.
Users being paid for the content they create sounds nice conceptually, but I would fully expect whatever implementation Reddit comes up with to be a disaster. Once money is involved on large platforms you see every crypto / nft / hustle-culture bro in a twenty mile radius show up trying to make a quick buck off of their latest scam, and a general appeal to whatever is the lowest common denominator that can be easily pumped out.
I'm fully expecting that to either be a disaster, or more likely to not even happen in the first place given that a lot of CEO interview talk is hot air.
I would imagine they'd only count votes from premium accounts. It [partially] avoids the bot issue while making them money off votes.
If someone attempts to manipulate it by paying for premium for said bots, then that's just extra money for them.