No, my gripe is that after at least half a decade of their popularity (and far longer if you count Usenet groups), we have yet to define and adopt a common etiquette for social-networking sites—in fact, you could extend that sentiment to the entire online experience. Whenever some new form of technology appears that shakes up the way we all interact, there's a period of hand-wringing until we all figure out how to use it appropriately. An early example was the telephone. When it first appeared, users fretted over everything from the loss of privacy it would bring to figuring out what salutation should be used when answering a call. (Famously, possibly apocryphally, Thomas Edison and Alexander Graham Bell proposed competing salutations. Edison's "Hello" won out. I, like The Simpsons's Mr. Burns, am more partial to the seafarer's lilt of Bell's preferred "Ahoy-hoy!") Eventually we sorted it out organically, and we pretty much all now say hello and goodbye, are judicious in our use of call-waiting and, until recently, referred to a centralized resource—the phone book—when trying to contact strangers. For the most part, ditto these rules for cellphones (although ringing cellphones in theaters and churches and rude gabbers in the checkout line are still amazingly common).