A lot of people are replying as if OP asked a question.

I think part of that is because outgoing links without a preview image are really easy to confuse with text-only posts, particularly because Reddit didn't allow adding both a text and a link simultaneously. Though in this case the text should've tipped people off that there's a link as well.

As for the actual topic, I agree with OP. I often forget to do it right when speaking, but I try to at least get it right when writing.