>you get paid when people zap your posts.

This basically ensures that posts will be worthless engagement bait

Wondered right there whether I misread or not. It should be the other way round: Pester the community and you're buying a round (90% joking here).

Bingo. The negative effects of karma farming are already outspoken on platforms like Hacker News and Reddit, and these are both platforms where karma itself is relatively worthless. Adding real money to the equation ruins it for good - look at what happened to Steemit, BAT and Coil.