This is thoroughly disgusting, but I guess now we at least know that Twitter is evil. Maybe we'll get a decentralized alternative to Twitter out of it.
Just curious, but is there any mass-market decentralized service that is actually widely used by normal people?
Besides email, you mean?
That's a pretty good example. But for the average normal person, email is very centralized-- aol, hotmail, yahoo, etc. Centralized in the sense that they've handed all control over to a 3rd party, which I thought was the point the op was making.