The problem here is the lack of communication. How hard is it to show a brief popup telling the user what is happening and how to reverse it? At lot of applications with a fullscreen mode already do this. For example, Parallels and VMWare Workstation do it[1]. Options that can be confusing or dangerous should come with warnings instead of just taking them away.
[1]I think there is a way to stop showing the message, though.
It's also probably a little early to declare something dead when people anxious to move to Google+ still can't even register. Not that I'm bitter or anything.
There are countries who don't use debt payments as political tools. A congressional stalemate that leads to a failure to pay bondholders is entirely possible.
My relationship with Hacker News is also much like this.
I have made exactly three comments before this one, and they were almost a year ago. If not for those, I might not have even created an account here. I just have the type of personality that enjoys taking in knowledge more than discussing it.
My account at Less Wrong is similarly neglected. I often wonder how many others (on both sites) do what I do.