Well said. One of the things I noticed after working as a copy editor for (way too many) years was that I became a worse reader in some ways. Everything I read, my attention could easily slip into copy editor mode, where I would pay more attention to grammar, style, and formatting than I did to the substance of the work.
Later on, I became a professional writer, in a marketing communications context. There, I had to basically unlearn much of what I used to correct people for, as there aren’t the same kinds of rules in other contexts. I mean, look at the grammar and punctuation in advertisements or marketing literature. It’s often screwy and weird — and can actually look wrong if it’s done correctly. Short, choppy sentences. lol.
Nowadays, though, any writing I do is usually for myself and, so far, I’ve decided to be my own editor — but only because I still enjoy it! :-)