Why not make the links different colors (or fonts)?
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I noticed that the blockquote wrapper seems to have fluttered on and off and on and now seems consistently off. Will this be its permanent condition?
... Misc. Requests:
It would be nice to be able to edit a post after it's sent. Failing that, it would be nice to be able to delete a post (one's own post, not posts of others).
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Larger message composition boxes. Hard to shoehorn stuff through a keyhole. (ex post facto mixed metaphor alert:))
However, neither of those are as clean as the blockquote method. Blockquotes allowed long lines of text and wide images to fall outside the right margin without affecting the rest of the contained text. Both tables and margins (on a div tag) stretch the right margin to the widest element in the content. This requires horizontal scrolling if the right margin falls outside the width of the browser window. Horizontal scrolling sucks!