Okay, this is the second game in a row that isn't registering total kills or levels. Just to make sure it wasn't a matter of the bar not showing ongoing progress, I got 540 total kills and it's not registering. The bar for the second badge has not indicated any leveling yet as well.
So what if "thumbs up" really meant "Death"? It's not common knowledge, and the accepted usage is pretty well established now. It's kind of like making a big deal about how tomatoes are really fruit and not vegetables. Who cares?