Default crossposting ends immediately. I've queued up a final import of comments from LiveJournal to my Dreamwidth account. Once that's finished (which will likely take a looong time), I plan to disable comments on Livejournal and cease crossposts.
Said Dreamwidth account, for any on LJ who see this and are wondering, can be found here (or edschweppe).
Originally posted at http://edschweppe.dreamwidth.org/230413.html - comment wherever you please.