Unfortunately, it’s not a matter of the Livejournal content having been ported into Dreamwidth; the Dreamwidth version of whatwasthatbook was created back in 2009 as a backup Just In Case; the first query dates from 2011, and the second and third from right after Perevorot ‘17 (the latter two were mine, in part as an attempt to jump-start the comm.) In short: the Dreamwidth comm contains only its own handful of posts and comments, and over a decade of LJ correspondence is gone.