Ok - I always try to provide feedback for everyone's game I play and I've done this for a few games. But I've seen what I'm doing is wrong. My bad. I didn't mean to make the Jam unfair.
This post wasn't actually specifically targeted towards you, it was another person I noticed, though there might be others doing the same. Actually I have checked out your comments and you seem to be good, can't actually see what should be wrong about them, you provide feedback specifically for the game that isn't just first impression and it is obvious you have played through them. Don't worry you seem to be just fine :)
Don't worry about it, these people seem to be doing it intentionally. I am actually impressed about how you have gone through so many games already and provided proper feedback, please don't let my post discourage you or change what you are already doing, it was meant for some completely different people