Sometimes when I quote another EYBer's post I seen HTML p tags in their text. Whenever I try to use those same tag in my own replies they show up as literals. And if I have the termerity to use them in my own original post I get a snarky warning not to do so. And that snark continues even after removal of the tags and does not go away. I eventually spotted what the snarky message was about — the presence of <p> in the Subject.
Raises the question of is it possible to use HTML, Markdown or other markup in posts?