First, Q is for a different purpose than Blockquote. Yes, if browsers don't support Q, we shouldn't really use it in post, but that's no reason for not allowing it. I'd guess the new table tags (thead, tfoot, tbody, col, colgroup) are not well supported either, but they are allowed. (Also super-search for <q> and see that a few people have used it even when it was not allowed.)
I don't really know how much the tags are supported in different browsers. If we can get information about many browsers and see that Q is not supported, we should put a note in the allowed tags list that it's deprecated, but we should definitely not deny it.
Firefox shows <Q> properly as a quotation mark. Here's a <Q>test quote</Q>. If you have time, try this in different versions of IE, NS, and other browsers, and if it does not work in many of them, convince the gods to make Q deprecated.
In reply to Re^4: INS, DEL, Q tags now allowed in posts
by ambrus
in thread INS, DEL, Q tags now allowed in posts
by ambrus
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