User blog comment:DaNASCAT/Technical Update: May 24, 2011/@comment-3104099-20110524163737/@comment-1656630-20110524164134

Hi Finchel.. i've reported this to engineering and have been trying to push for it to get fixed, but they're unable to reproduce the problem on demand or see a cause for it, so it's hard to keep it on their list.

Please keep sending me details (timestamps of when it happens, screenshots, accounts of other people seeing it, any patterns in what kinds of content disappear, and especially any other wikis it's happening on) so i can keep building the case for what's happening. Messages on my talk page are fine. thanks!