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Yeah...more than we even want :) that might be even true ... there is too many things to handle. It is all interesting stuff, but you got to learn slowly, otherwise you will hate cryptoworld for eternity :D And Steemit posts are mostly about that. When I say mostly , I estimate at around 25% of all posts

And that's accounting for over 60% spam and shitposts...

If you mean those short (up to 100 words) posts with deeper meaning "look at me, I'm a steemit trader, because I can tell you yesterday's statistics" plus few memes in the end? Than yes, that is a shitpost, and I would say you are pretty close with that number

And it's sad. I hate being right.