None of what I said is a rule or anything. I was only making suggestions (I said "you can"). The comment got a few upvotes, though, so I'm not alone in thinking it's a good way of going about things.

To be honest, I hadn't considered the possibility of posting the screenshot as an alternative thumbnail. At the time I was suggesting putting an excerpt in the body as a means of posting an excerpt at all while still linking to the article, but you found another way to achieve that which I can see definite advantages in.

I think a lot of people here prefer text in general, though. Recent examples of people pasting key excerpts as text in the body: https://aussie.zone/post/20764770 https://aussie.zone/post/20646025