Another thing to note is that this forum is not Apple's issue tracking/feedback system. If you want them to fix the "irritating eye sores" then posting here is the very last thing that will get it sorted. You need to send in feedback. Apple now includes the feedback assistant with El Capitan (you can find in Applications > Utilities). Use it because that's exactly what it is for!
Yes, file a Radar. I've heard it before and can still hear Apple Engineering laughter ringing in my ears.
That aside, we come here to create active discussion and debates about things like this "non-bug" bug.