now that you mentioned it I did get 10 random ratings on my game in a single day when all I was able to get otherwise were a mere 12 and I did not promote or even send a link to a friend in a week something is certainly fishy (btw this is NOT me saying that I forged anything I DIDN'T) I also checked the youtubers who were testing games on their respected channels but still my game wasn't there in conclusion I think it could be one of two things
1_ either a group was kind enough to try their best at giving game a huge rating boost
2_ or maybe someone IS using bots on other people's games to get them disqualified thou that wouldn't make sense since a lot of the games that got a boost weren't too popular (I saw that including my own game so please don't get mad or anything this is not an insult)