I am already in love with the content discovery ideas you put here. You know, at atleast, one can get to see posts made by, not just those you are following, but others too instead of manually searching for them. And if possible, sorting contents to different topics like politics, business, education etc. will be a good upgrade to the chain!

Also the case of the 7-day reward system could be revised due to the fact that some old posts are great wealth of info and what if someone in the next 2 years would love to reward the author?