Quote Originally Posted by 'Phanes',index.php?page=Thread&postID=206060#post2 06060
I read on another forum that people have found a place to park the shredders where people cannot find them as a form of griefing. Some people talk about finding them all underwater and others have found them inside buildings all stacked up.

Apparently this started happening around 3.1 they must have broke something about the shredders in 3.1 that is allowing people to take them out of the area or something of that nature.
Dismounting a shredder used to despawn it within about 10-15 seconds, this is NOT the case any more as you can dismount and they just stay there.