I really like this idea. It would be a new way for users to find more content they are interested in, while ignoring stuff they don't want to see!

I just featured a link to your post in my list of proposals to enhance the Steemit website :)
https://steemit.com/ui/@timcliff/let-s-make-steemit-better-comprehensive-list-of-suggested-ui-ux-improvements-to-make-to-the-steemit-com-website