Re: <q>

Have to admit, the <q> tag is one of favorites. Since it has no meaningful
overt use (because of past IE), it makes a handy container for data to be
transformed to something else by script. Short tags trim a bit from the
processing needed on the server, and fewer bits on the wire (both always a
good thing). Adds up for complex structures. So <q> ends up quite useful (in
conjunction with script), only because it has no use (in HTML).

Makes me wish there more valid useless short tags.

Right - not exactly related to the prior discussion of <q>. Closer to the
discussion on extensibility, if you can make the connection.