I think I noticed a small bug when you gain reputation.
Here's how I found out:
I lost 5 reputation here on Meta, however I gained 10 reputation on StackOverflow. The two combined into 1 notification, so it said I gained 5 reputation which is irrelevant since the sites gained on were separate.
If this isn't a bug, please consider implementing a way to distinguish between different site reputation when notifying us? Combining the site changes doesn't quite make sense to me. Thanks!
(PS - I didn't know if this is a bug or a feature request, so please edit when determined!)
Edit: I know it distinguishes when you open the notifications bar, but before you click on it, it does not. That is what I'm talking about here)