I want to report that I discovered something pretty exploitable.
Lets say you have a comment with 14 votes..
And somebody just votes you up, and you have 15.
You then gain 100 reputation points.
After that, if they vote you down, you lose the badge, but you don't lose the reputation. Once it up votes again, you gain the badge, gain a 100 reputation points. Repeat.
I discovered this while giving @kemosabe 11k worth of reputation..
So you might want to recount it xD
EDIT: Also tested it on the Good Comment badge for myself, it worked. hehe?