I agree in general with your points, but what I'm emphasizing is freedom of press _as practiced_ has never been better than today. There are Russians all over the internet writing exactly what they think, even though their government would oppress their speech if they could. About Chinese and Saudi Arabs - I have no clue if they are circumventing censorship. Do you know?
Governments and people of power are attempting to surpress free speech as hard as ever today in most of the world, including your example Britain, or why not Australia or Brazil. The difference is that with the internet, speech is much more free _as practiced_ than ever before.
Your talk of "crazy conspiracy theorists" doesn't reflect well on the rest of your comment. This is a term that has been used very much as a slur to oppress free speech. It's basically the modern equivalent of calling somebody a heretic. Many of the people doing the investigative reporting you're calling for have to endure being called this when people do not agree with their reporting.