Threads disapearing and then reapprearing again

[mattybucks]

Is it me, am I going a little crazy, but several posts keep on disapearing, and then re-appearing again.

The Tamiya section for one has a 501 setup post last comment 12 mins ago, I then look another thread as go back to the forum page and then the most recent post was 10 hours ago.

I've also seen the Garage sale post in the for sale section do the same.