You should check out DreemPort It's been in testing stage for about a year and went live yesterday. On DreemPort as a public curator you read 5 posts, accept or reject them for spam and then rank them. You then submit your own post. Over the course of the day the posts in the pool will be presented to all the public users who log in that day and ranked based on their curation.

The next day, what you have submitted will be in the pool. You earn DREEM tokens for curating.

The majority of users right now are on Hive but the system is open to any platform.

As for evergreen content, if the system allowed for payout after a week and then continued payouts each month I think we'd find that the amount earned after the initial payout would not be much of a draw on the reward pool (or a token pool). I see this play out over on Medium, most of my posts will earn at most pennies after the initial month. It's rare to see more than that.