On a related note I often wonder what is under the purview of hashgacha other than food.
For example goyish music, koli isha, music during sefira, acapella during sefira, music ever for that matter, dress of wait staff, TV, selling meat during nine days (sefardim can eat, some will be makign siyumim) etc etc… Is a hashgcha responsible for these things?
Obviously a hashgacha can institute whatever policy they want. But what do you think they are responsible for other than kashrus of the food.