For anyone still interested, If you contact Guest Communications and ask specifically about bringing back your old mugs since you were told you could.
They will inform you of the current policy concerning this particular situation.
If at anytime if I as Lewis stated, offended anyone during this discussion, I completely and totally apologize. That was never, never my intention. My only intention was I know what the policy is, I know what Disney will tell you if you ask. I do know it is not enforced at all locations, that might change though. At this time it is an honor situation.
It is up to each individual to do what they feel is right. I hope we can all let this go I know I will.
Thanks everyone, enjoy your weekend.