I suppose it doesn't really matter, though a general forum tends to direct the quote to the "real" reply function.
On VBulletin, which you'll see most big boards using, quoting will bring up the quick reply box. It's just that there's also a clear "Go Advanced" button that'll let you get the full WYSIWYG editor, whereas here you'll need to hit preview to bring it up.
While we're on the topic of forum functionality, the ability to embed flash videos like Youtube videos would be awesome.