Thanks @teamsteem for this wonderful article. It was really informative. I have a question about this 7 days thing in steemit. If my understanding is correct, a post/comment will be rewarded only for 7 days when it is upvoted. Why is that the case? Why can't a older post be rewarded?
I see this post after 8 months from the date of posting because I joined only a month before. Is it that even if I upvote this post it is of no use to the author? Can you please explain?
The vote have no use after 7 days. The reason is computational power. This is what limit this 7 days thing. But as long as the price of Steem goes up it's as if we are paid for older posts too.