Whatever the particulars or merits of the suit, I'm sure Craigslist fans will stand by the company -- especially with company notices titled "Tainted Love." Classic.
co.mments works the least worst of cooment tracking systems I've tried. Co-comment just stopped picking up threads in my experience. Dave Winer uses Disqus on his site, and it seems to wotk well fot what it does, but I don't see the mass adoption it requires to become more than a niche product. Tracking convervasions is -- to my eyes -- a big deed not yet met. More people would have better conversations if commenting were easier to join, track, merge and/or link with other comments and conversations.