The new version of Disqus has rolled out. In order to test this, I need to post an image of Catherine Zeta Jones.
OK, so far, so good.
So I've been in touch with Disqus' co-founder tonight (who has been very responsive, thank you!). There is a nasty bug now which scrambles the sort order of comments. So if you post comments Oldest First (as most sane people do), you'll find new comments being shoved into the top. They hope to have this fixed by Wednesday morning.
One silver lining is, at my request, they fired up a spiffy new Tim feature that auto-updates your comments.