My site also has had some missing posts. AND PMs sent, then disappearing.
Larger issue, my site has two webcams, connecting via FTP every 5 minutes to upload a new picture. Yesterday (Nov 7), they were completely unable to connect. And I was unable to connect directly via FTP as well.
I opened a Mindraven support ticket, and was told they had shut down ftp access while they migrated the site to a different server "for better performance"
. About midnight Pacific Standard time (San Francisco, California, USA), I noticed there were missing messages.
FTP started working soon after that, but today, I had more trouble with ftp: One remote connection working, the other not, then vice versa. As I write this, one is currently not working.
In my Mindraven support ticket, I have been answered by several: Anand, then Priya, and last, Yogesh.
Edit: And I see my server is now listed at iWeb Technologies Inc., Montreal, Canada.