LOL . . . spend a week with me as we delve into the hidden web/dark web for a research project. Freedom of speech is alive and well. Dangerously so, actually. Google does not index the vast majority of the available web. Did you all know that? The DW is said to be many times larger than what you will find indexed by Google and Bing. You will find ads for LSD, hit men, people who will custom steal products for you to order, stolen property, stolen CC and PayPal accounts and you can purchase in bulk using BitCoin.
Visit the DW and learn why some freedoms should be suppressed.
A few points:
Someone owns this forum and he or she can say no Obama talk, no discussing food containing MSG and absolutely no talk of Android. This is not suppression, it is a right they enjoy as owner(s) of the IPF. Everyone is out for the last few remaining dollars. Google gave us Android for free, but their motives were financial. So they will make rules that they believe will help further their bottom line. I do not see the big changes the OP sees.
I do see a push to monetize and the big players jockeying for position. they all want to be King and they will do whatever they need to do to monetize the web.
Only the United states Government can suppress freedom of speech. At least in the way those that scream about their fictitious freedom of speech "rights" are concerned. Non-government entities can do whatever they want to do and it is not a freedom of speech issue in the constitutional vein.