I'm beginning to realize that there are a lot of ordinary small businesses that do things through Facebook. I tried asking a mechanic what to do with my car, and they answered...on a weekend! No other form of communication substitutes. The same people don't seem to respond to email, and I prefer written communication to phone calls.

Not many... I quit fb but not totally. I removed all my friends to no news feed or crap. I still use it for groups though.

Any facts to back that up or are we just doing anecdotes?

This is me. I just tell people sorry, I don’t do Facebook.

Perhaps, but it is extremely resilient in certain markets. University for example. Here in the UK societies and social events are all managed through Facebook Groups and Events. There isn't even really an alternative platform.

That's about as "on the contrary" as pointing out that the number of people using NoScript jumped from 7 to 8 last year.