John, although you apparently already gave up on the idea, I believe the visually very unappealing kind of problem is not solved by removing the ability to create headings, but simply by changing the CSS template or the HTML generator settings of this site to produce a less obtrusive heading look.
Currently the site defaults for using <h2> for
Headings
created by a "markdown underline" `-----` under the text, although formatting using HTML tags or `###` also allows for less obtrusive `` Headings
already. Maybe `` should simply be made the default for markdown-created headlines since the overly large font along with the huge spacings (*font-size:140%;margin-bottom:7px;line-height:1.3*) indeed break the flow of text a whole bit too much.As a side note, I do not see at all how the <h2> and <h1> formatting fits into the visual design of the site and I would like to see it changing into something entirely different altogether (smaller font sizes, less margins, and setting apart of <h3> using different means instead - e.g. a different font family, underlining or italization)