Now that a lot of the Web is free, you don’t have much room to talk when it breaks.
You hate a recent Facebook change? Start a petition and pray for the best. You could quit the service, (which might actually be good for Facebook’s revenue if you don’t click on ads) but you’d lose all the value they give you for free.
Twitter’s down? Suck it up. You’re not paying anything anyway, and the company purposely buries its phone number to discourage calls from regular people.
Breakdowns annoy users and they get over them. For businesses, though, investing too much in unstable, proprietary services can mean BIG losses.