There is a lot of stuff I would like to see happen in the explore section, but having a download counter, comments, etc. would mean setting up a way for the server to constantly interact and update the information. With a lot of work I might be able to pull it off, but it would be tough for my skill level.
I think it's not as hard, at least a download counter is not very complicated. If you can put a description on a published game, you can do also this, the only hard thing is to get updated constantly. Comments also will be great, and a rating system.
For me, there are 3 main rating systems:
YouTube style: Likes and dislikes
Twitter style: Only likes
Geometry Dash style: Likes on dislikes and the rating counter is based on the formula (likes - dislikes)