I can't believe how quickly you guys are jumping to the conclusion of letting twitter die. It has a lot of value for common people to report problems and make them being noticed. For example, I've lost the count of how many people have gotten a better deal with companies that in the first place offered them a bad service / product, just by publicly reporting them on twitter.
Also lot of people get a quick support response just by typing "@company problem" no matter what company or the problem is. That's an incredibly easy way for users to solve many of their problems.
The world will keep going on without twitter for sure, but the hole that it will leave behind will be noticed.