Someone should have picked this up. The main point is that adding a lot of visual clutter *also* is an accessibility concern - it makes it harder to parse the page and to find the text you're looking for, so a feature like this ought to be opt-in, either via a setting (preferred) or via custom css, or both.

(This is not to say that your work isn't valued, and that the people who squee over it aren't going to be happy, but the rest of us are suddenly faced with a lot of visual clutter that is extremely unwelcome, and so we complain.)