Looked it up, apparently someone datamined something out of the app that said you could earn money for getting karma/gold on posts.

Fake internet points are finally worth something!
Now redditors can earn real money for their contributions to the Reddit community, based on the karma and gold they've been given.
How it works:
* Redditors give gold to posts, comments, or other contributions they think are really worth something.
* Eligible contributors that earn enough karma and gold can cash out their earnings for real money.
* Contributors apply to the program to see if they're eligible.
* Top contributors make top dollar. The more karma and gold contributors earn, the more money they can receive.

This is absolutely going to get gamed to hell if it really happens. It also reeks of desperation.