Yes, the thing is, Steemit is intended to be a platform for original work. When you copy an article like this and post it, especially without attribution, people are going to see it as plagiarism. It's likely that you will be flagged, and your reputation will suffer. If you share articles like this and they actually take off and get votes, you will definitely be flagged, and you will receive no payout.

I'm sure there are many things you can write about from your own experience. Perhaps you can write some posts about your own opinion on the crypto market.