Digg is apparently trying to piggyback the reddit chaos and is talking about bringing back comments. I haven't really used Digg since about 2008, but I'd be tempted to stick around for a bit to see how they implement comments.
<a href="https://hubski.com//pub/240732">Discuss this on Hubski.</a>
Text surrounded by asterisks (*) is italicized.
Text surrounded by plus signs (+) is bolded.
Text surrounded by vertical bars (|) is quoted. If you double-click a paragraph, it will be quoted.
Text surrounded by tildes (~) is blocked out.
Symbols such as *, +, |, and ~ can be used literally by placed a \ in front of the text.
A user's name surrounded by at signs (@) links to their profile, and the user is notified that you mentioned them.
A word surrounded by hash signs (#) becomes a tag and links to posts with that tag.
Text after a blank line that is indented by two or more spaces is reproduced verbatim in a different font.
URLs become links. However, new users cannot post links in comments.
Hubski URLS become embedded cards, displaying information about the post or comment.
Text can link to URLs by using the following format: [linked text](http://theurl.com)
Youtube, Vimeo, Soundcloud, Twitter, and Spotify urls will embed the content automatically.
Image URLs (.png, .tif, .gif, and .jpg) will embed automatically.
I don't think Digg will ever get back to how big it was, whether they bring back comments or not.
I don't think it will either, but I'm interested to see what they do.