Reminds me of the Behavioral Economics classic case of the daycare that started charging for late pickup. Instead of disincentivizing bad behavior, it assigned a price to a service which people became happy to pay, when prior they avoided doing it due to social stigma.

There aren't just concerns, it's a f prediction.

redditors need to earn at least 10 gold within a 30-day period — if they don’t reach the threshold, the balance rolls over. For users with between 100 and 4,999 karma, they will receive $0.90 per 1 gold. Once you earn more than 5,000 karma, you can earn $1 per gold.

Do you think people will buy gold for spam and click bait, though? It's basically a person paying $2 to give the poster $1. Who's going to give money to clickbait?

What it will do is spawn some heavy, heavy super users that will just immediately post every article as soon as it drops from a swath of different websites in hopes of getting paid.