H1 is uppercase but not claimed to be such
The "H1" format in the wiki is all-uppercase.
I don't like it at all, but everybody is different
so I'm not complaining (I like the previos fonts much more,
but I can live with this).
The problem (a minor one) is with the help page
https://www.ohwr.org/help/wiki_syntax
There the H1 is shown lowercase (I love it :),
this may be a symptom that the whole of the help page is
subtly wrong when showing rendeding, being bound
to a different style than the wiki is.