I generally don't. To me, if it's worth annotating, it's worth just starting a notes page on the topic that I may or may not copy the contents of the article i

I generally don't. To me, if it's worth annotating, it's worth just starting a notes page on the topic that I may or may not copy the contents of the article into. I wouldn't generally be interested in articles annotated by someone else. Those annotations are largely personal, based on that particular reader's viewpoint and interests. It doesn't feel like a random person's annotations on an article really add any depth to me. It might be different it was a social annotation system where people could reply, but we already do basically that by quoting the article. The exception to that would be articles annotated by an expert in that field. I would be interested in seeing Fauci's annotations on COVID articles, or a tournament-winning MTG player's annotations on new cards or something like that. At that point it's more about reading into their thought process than it is about the literal annotations, though.