It was mostly writers talking about about books and writing and the publishing industry (the original post was about a book), but some things reminded people of other things and some comments went off on tangents.
There was one tangential comment thread of a musician friend of mine (named Barry) reminiscing about all the bands he'd been in, and I read it and was like, "oh yeah, I'd forgotten that first band, but I heard them play at Convergence way back when HarmCon was in an atrium". None of these bands nor this musician actually exist, to my knowledge, and I certainly hadn't heard of them in real life, but dream memory is funny.
And once again, to people who say "you can't read in dreams", I say, "well, maybe YOU can't read in dreams . . ."