Almost two years ago, Wikipedia banned users from the State of Qatar from editing anonymously, and from signing up for accounts. At the time, it was dismissed as a storm in a tea-cup by Jim Wales. Many people decided it wasn't a problem because of the small size of the country.
Well, now the rest of the world is catching up with the Middle East in the use of transparent proxies, maybe Wikipedia will try to find some solution to the problem. In Qatar, for the last two years, we have continued to be blocked for months at a time from editing.