I am not a huge twitter fan. I watched the http://foundation.bz/ interview with Biz Stone, and he seems like he has integrity. I think some of the management of twitter is a bit dubious, but the core function of the application is rather valuable. It is a good way to keep track of people & events. It makes it easy to broadcast things like occupy, arabspring, ebola, charities, entrepreneurs, etc. It is a good way for people to collectively contribute ideas such as news. It isn't really meant to be a social network. What the author purports to be a bug, is actually like the key usecase/feature of twitter. I don't regularly use it, and am pretty ambivalent, but I understand the value.