The fact that you would need two witnesses to prove anybody is a glutton , I cant see that anybody would ever be DF or even counselled for that offence .
How or who decides who a glutton is ?
Who in the world today of 8 Billion people could you claim is a glutton ?
I wouldnt be able to point the finger at one individual in my circle of friends or associates past and present.
Then again if a group of Bros.& sisters go out for a meal together and one person over indulges themselves on the food provided not because he/she is a glutton but simply being overjoyed of the occasion if two people accuse them of being a glutton ,what defence could one bring on his behalf.