I'm a bit disturbed that my game had 15 ratings yesterday morning, but now that results are out it only has 9?
Viewing post in Rating irregularities
A lot of games had a significant drop. (We lost 24 ourselves. There's one game that lost like 200.) There were nights where every game gained like 5 votes at the same time though, so everyone losing ratings to bots was bound to happen. Still sucks to see the number drop, but don't let it discourage you.