oh I thought they were deleting stuff that wasn't rated or downloaded for everything I have ever put up besides my Jira Kainsmen has been deleted. I thought since nothing else was rated they decided not worth keeping on their servers.
XBL content disappears and then shows up at a later time, all the time. It's caused by the THQ Syndrome. This is the syndrome where you have to remove things all the time, and then put them back, and then call them "NEW".
But yeah, don't worry, the stuff will show up later, it always does that. The content isn't actually deleted.