Michel Fortin wrote:
To me, a figure contains illustrative content attached to a document. It
may be an image, a code sample, or a snippet of another document used as
an example. I think it's important we do not try to narrow too much what
can and what cannot be contained in a figure; that's the job of the
author do decide.
For instance, lets say an author wants to put a paragraph in a figure.
It could be to show how the font is rendered, in which case he may
prefer to use a pixel or vector image because what is important is the
shape of the characters; it may be to show a particular writing style,
in which case it's much better to provide the paragraph as text directly
as the text itself is the illustration. In any case, the author knows
what he wants to illustrate, and we should allow him to use the best
medium for that task.
Some examples of this kind of usage, albeit without the captions:
http://www.mozilla.org/contribute/writing/markup#notes
~fantasai