If one has the right to stiff the wait staff, the wait staff has the right to call you out for it.
Yep. It’s all about free speech.
In Philly, the typical wait staff would have FReepers committed to re-education camps. The fact that the restaurant went so public with this says something about lack of professionalism and bad business sense. Maybe they should do an ad that says " Eat at ptomaine house and have your reputation ruined. " These people ain't Gert down at the diner, believe me.