Let's Find Those Trait Improvements

I think for the emotional ones (gloomy, hot-headed and cheerful), the improvement lies on the frequency of the moodlets which are now increased. Before the patch, they would get it randomly when they wake up. Now it's more randomly throughout the day and more so often, so there's less of a chance to be overwritten by other moodlets.

Still doesn't make cheerful a non-pointless trait unfortunately :p