Yep - me too...
I amended a value on a stamp in one of my collections, whereupon it disappeared from that collection. Investigated and it had been assigned to Owner WL. There it was in the Want List. Then I was horrified to see that loads of other stamps are in there.
I didn't even know the Want List existed and have therefore never knowingly added anything to it. Do I need to go through every one of the entries therein and establish its actual status