If your game description said something like "Made by a 4th Grader" or "A Kid Production", maybe people wouldn't post negative comments about your games, or rate them poorly.

On the other hand, if people make constructive suggestions (to fix spelling or something), why don't you go back and edit your games and make the changes? It's no harder to change a game than to make one.

And when you make corrections, people see that as a good thing, and rate more generously.

Good luck and good games.