> Do you really think a reddit/aggregator where you pay-per-upvote (via a subscription service, instead of fiverr like a normal person) is going to encourage long form articles?

Not necessarily long form articles. I don't think people will part with their money in exchange for something that doesn't have substance. I think it will encourage content that is helpful. Long form articles can help people understand things, Ethereum for example, in ways that a meme can't. In that way I think it will encourage long form articles, but more generally it will encourage helpful content.

What do you think about the steemit.com model, where instead of reader pays for the upvote, the whole community pays for it through dilution?

I think steemit is really interesting because posts are actually stored in the blockchain and all their payments are done using the Steem currency. I write about Ethereum but my backend is pretty standard: postgres with credit cards and bank accounts. I prefer direct payments because I think it's a stronger signal but I think they're cool and I wish them the best of luck. Maybe I'll buy some Steem.