Hi @fun2learn
Finally I've found some time to catch up and read few previously bookmarked posts.
Interesting comparison. I think @tipu is providing the best payouts, however this program doesnt necessary bring much value to steem/hive.
You've wrote about tipu: "constantly looking out for quality content" which I kind of disagree. The way Tipu is organized (I'm one of curators) is simple. They reward curators for upvoting publications, which will attract strong upvotes later on. Priority is to ensure that tipu curation rewards are high.
So most tipu curators are those, who have large accounts under their management. They end up placing tipu upvote before their own solid upvote. Am I making sense?
Solid read. Upvoted already.
Yours, Piotr