Hi, writing this message here since I have seen a few people leave highly negative feedback on some of the games. This is a beginner friendly jam. Not everyone's an expert, or has the time to get something fully polished out. People might be new to making games or trying pursue their love for game dev through day jobs and family commitments, etc. Remember to offer encouragement and be kind!
Giving critical feedback on bugs is definitely okay and welcome but should be more along the lines of --- I really like so and so ---I did notice that so and so isn't functioning as it should --- insert suggestion on how to fix it. Don't disparage someone's ideas/theme/work because you don't like it, or if they weren't able to fully execute it.
To anyone who got negative comments - Good job on getting something together! Hope you had fun with the process and keep making games, looking forward to your submissions further jams! :)