Except there are an indefinite number of other DNS servers, free and with a contract, that Turkish users could use too, from an indefinite number of different vendors. It's a heck of a lot harder to block "any DNS server that isn't under Turkish government control" than it is to block twitter.

We can all speculate, but really I was hoping that someone had some additional information, perhaps because they are in Turkey, on what's going on exactly.

(Is it too much to expect discussion of technical details on HN, instead of political bickering? On anything involving Turkey, anywhere on the internet, yeah, it probably is. The reason why I'm curious about technical details is, of course, because I have an interest in knowing how to circumvent and help people circumvent whatever censors are up to these days).