Vids @ Imeem?

I recently wanted to watch vids again and followed quite a few links (among them recs by blnchflr and frogspace) to imeem, but about half of the time I was told this:

We apologize, but the video: videoname

is not available at this time.

Did I miss something (most likely option)? Did a number of vidders decide not to use the site anymore? I know some of them were there a few months ago because I watched them not too long ago.