I felt pleased to get a prompt response when I opened a ticket about Dreamwidth's new failure to cross-post to Livejournal. This problem arose for me on May 11, after a long space of time in which such failures were rare. The response to the ticket was less than satisfactory. The response went like this:
"LiveJournal's abuse detection systems have gotten significantly more sensitive, they're no longer responding to our contacts about this and are claiming to Dreamwidth users who contact them that they're no longer able to whitelist our IP addresses the way they have for the past decade, and we're very limited in what steps we can take to work around the blocks when they impose them. We're doing what we can to work around the issue, but I'm afraid it may be a while until crossposting works reliably again."
I have never seen anything posted on Dreamwidth about LiveJournal that did not have kind of "sky is falling" sense that all the world's problems are to do with LiveJournal. I do not know the story from both sides' perspective. But I suppose I must start manually cross-posting.