@LoseLooseLucy
How could it possibly be confusing to see at a glance which are the OP's posts?
I was replying to a PP regarding changing the colours I've used for years. I can't imagine reading it without the OPs posts being unhighlighted.
You need to use quote, I thought you were replying to the posters who weren't going to highlight them.
You know about quote, right 
?