Instead of acknowledging these changes as the source of discontent, he blames customers and the review site for pointing issues out. Instead of penning op-eds he should be training his staff, buying higher quality ingredients, and listening to customer complaints.
Owners who hate Yelp ignore the near real time feedback they would never get in person. Complaints posted Fri - Sun more often than Mon - Thur: maybe it you need to look at who works what shifts? Calamari rubbery: Did someone properly train the line cooks? Food called bland, mediocre, bad, or unremarkable: Maybe you should go back to the higher quality ingredients you decided to skimp on to "make more money"?
Yelp looks to be a great way to avoid the death spiral restaurants commonly find themselves in.
Not making enough money? Buy lower quality ingredients. Still not making enough money? Raise prices. Repeat until you lose all regular business and rely on unsuspecting first timers who begrudgingly pay and never return. Eventually close it down.