Michael,
What's the inline markup for "display this glyph upside down"?
It doesn't really matter, and it would depend on the system anyway.
My argument here is that this is a one-off "need" for some character in
a specialized, decorative context. This upside-downness or rotation is
not systematic in Chinese, nor part of a notational system. There is no
need for this thing to be expressed inline in plain text at all.
The one given example in the Wikipedia page, for example, is not
"textual", it is a paper decoration hung upside down.
Rick
