I tend to read as proofer reader/copy editor, and graphic designer of 25+ years experience, mostly in print. I'm also a long time beta reader for a highly polished and excellent author. These days, I admin the FB group and Medium pub, "WE PAW Bloggers" tightly focucsed writers forum.
When I offer proofing or editing notes, I do so in the private notes option. And as I mentioned before, usually only minor edits on what I feel is any otherwise decently composed article.
I also hope folks will call my attention to errors in my own writing. After all, we can always use another good pair of proofing/editing eyes.