Hi Red Sweater / Daniel,
I am using MarsEdit 3.6.3. I noticed something unexpected in rich text mode, and in raw html mode (shift-command-t) I can see what is happening. I'm typing a post for a WordPress site.
1. Type a paragraph. It gets p tags as expected.
2. Choose format / list / insert bulleted list. Type your bullet items.
3. Hit return twice to exit list mode and return to paragraph mode (or so I would hope).
At this point, instead of continuing with p tags for the paragraphs, we are now enclosing the paragraphs in div tags. I noticed this because div leaves no space between paragraphs but p does leave vertical space between paragraph. Or at least this is how it appears to me inside MarsEdit rich text mode.
Whenever I notice this, I just flip over to raw html mode, change the div and /div to p and /p, and all is well. Hit return to start a new paragraph, and indeed it does start with the p tag.
MarsEdit is such a great Mac tool that I figured you'd want to know about this minor edge case. Thanks for the great software!
Ed Barnard, Cannon Falls Minnesota