I'll give it a try for sure :D
Thanks for the infos, it looks like a good system! Itch.io should really implement one as well for any jam!
It really is! I've received over 50 feedback comments on some of my LD entries, which is very good!
I've created a thread suggesting they add the exact same system here, it would be very nice if they did:
https://itch.io/t/527869/karma-system-for-the-game-jams