Instead of rating another game that already has a couple, or several ratings, check out the unrated section which can be accessed on the entries page with the message, "Help rate games that have few ratings: Games in need of ratings"

https://itch.io/jam/jimjam-2/unrated

This is a nice suggestion, I'm going to try and work through some of these tomorrow when i'm doing my ratings

This is an amazing feature that I would've missed. Thanks for letting us know about it.

Great idea! I will rate some of them.

I'll start working through these once I've got through all the people from GDU who want their games rated, I've been prioritising those since they've been playing my game :)