The attacks from Wendy's on this particular topic have increased since McDonald's began rolling out fresh beef in its Quarter Pounders.
More and more restaurants in the fast food and fast casual world have taken Wendy's lead by using humor in their social media presence. Though, some, like Denny's and Burger King, have kept a lighter touch with most of its posts. Or they've more lovingly trolled, say, the Cleveland Browns, instead of competitors or customers. Wendy's doesn't have what you'd call a light touch. In fact, it ran a somewhat more tame ad -- though in this exact vein -- as a Super Bowl commercial.
It might turn some people off to see a restaurant trolling competitors, but it's clearly earned them a loyal following on Twitter.