Honestly, I'm waiting for Wikipedia to just decide "this isn't worth it" and start banning countries that are trying to restrict it's usage. The organization is large and used enough that I feel that threat alone would usually suffice in at least causing a moment to think about if it's worth it. Especially considering the volunteer based system it is. This isn't a company that has a bunch of money to throw at changes and stuff. It's a non-profit that runs mostly on donations from it's peers.
Like I'm all for freedom of information and all but, I hard agree removing the anonymity of the platform will stifle the information on it more than just straight blocking the countries trying to overstep. Worst case scenario is that people will use some form of Proxy or VPN to access it afterwards if they really wanted to keep access.