The more games you review, the more your game gets promoted in the algorithm. So once the jam starts, go ham on giving out scores (also if you review bomb everyone with bad reviews just to put your game higher, your reviews will be weighed less and won't matter)
Haha, yeah. I'm a little afraid of review bombing though. If it's targeted at you by people to lower your score it's still an issue, and I've had people jump in the chats in the Discord just to yell at me and call me shit for using Unreal instead of Unity for my project (big whoop i like Unreal + C++ better than Unity + C#, who cares!) and I'm a little worried about those people targeting me. It's only not a problem if people are review bombing everyone to attempt to get their game higher, that's when it gets weighed out. Anyone targeting your project specifically will still make a HUGE impact.
The reputation will always go to whatever is the "best" engine, because that means it is easier to use, so the people who don't know what they are doing will flock to it. Unreal gives you the option of Blueprints, so naturally those people will flock to Unreal to avoid programming because it is the lowest barrier of entry. I wrote my game in C++ though not BP, because it's much better runs faster and you usually end with less bugs, but people see my game and go "I BET YOU CANT EVEN CODE YOUR GAME IS TRASH". Like yeah I used art assets it's allowed 99% of the people in the jam did too, but I made all my own code. People also see that I have good lighting and go "Yeah Unreal did all that for you" and it's like ??? I still had to do all of that lighting and post processing just like the Unity users, same as my code, same as everything else.