I realize full well that obsessing about one's edit summaries is
a sign of, well, obsession, and I'm not about to propose a way of
editing them, but given that their formatting rules are subtly
different from normal wikitext (special treatment of /* */,
evidently no treatment of ''...'', automagic insertion of
the → character, etc.), it seems like it would be nice (but also
benign) to show a preview of the edit summary along with the rest
of the page when doing Show Preview. Is this too goofy an idea?