Hmm. Every time I see the name Stallman I just conclude it's all about materials not distributed freely. Essentially, don't buy anything from anybody who don't support free redistribution (iTunes, App store, Play Store, etc).
I for one don't need to read every rant by RMS against Digital Restrictions Management, even if I agree with him by and large. I have much better things to do with my time. A lot of useful prejudice work that way in a lot of domains.
I have my own personal boycotting policies, and one of them is to never, ever buy digital media with DRM. Which, strangely enough, Amazon has long allowed me to avoid if the rights holder allows, e.g. I have a nice set of MP3s I got from them for a CD of Scandinavian music that in physical form was by then out of print and way too expensive.
They also tell you if a Kindle digital book has no DRM at the bottom of it's description. They don't really care, and I respect their choice to abide by rights holder's restrictions and sell the stuff anyway.
No it is not useful in this case, because Stallmanns page is much more about than just materials not distributed freely. For your convenience the headers of his page about Amazon:
The additional stuff pretty much falls into categories of:
Already covered by my policies.
Don't believe it.
All big companies have some insanities; if that bothered me I'd be living off the grid.
Don't think it's a problem.
And RMS and I have very different political views ... and a lot of his are remarkably uninformed (disclaimer: I knew him rather well in the early '80s, e.g. we were roommates when he started the GNU Project).
This covers the whole Political Harm section, I'm "right wing" myself, so it's not axiomatic I'd mind ALEC's lobbying, the Left's campaign against "voter suppression" is a existentially dangerous campaign for more voter fraud, and Stand You Ground laws have nothing to do with any sort of "Shoot First" policy. Heck, I'm not sure I've even seen that insane phrase before, but the gun-grabbers are ever inventive in their total dishonesty. (RMS is also one of the last people in the world you should be paying attention to when it comes to the self-defense area, it's a miracle he's still alive.)
Note, there's a relevant point in going into details below; this is an area of personal expertise going back to the early '70s:
Stand Your Ground is shorthand/American value invoking propaganda wording simply for having no duty to retreat, nothing more or less, although I suppose if you're a rabbit it's antithetical. It's extremely valuable against abusive prosecutors who insist in the calmness of a courtroom there was some plausible way for you to retreat:
In two Massachusetts cases I'm familiar with, convicting when retreat wasn't really possible, or would have required abandoning a child to the tender mercies of a home intruder. As of late, it's been noted that more blacks have benefited from Florida's Stand Your Ground law than whites....
The major point I'm trying to make is that RMS's sophistication about things outside the domains where he's good, the ones relevant to me limited to computer stuff, is very poor, sometimes to the point of implicitly suicidal, and I have nothing to gain from reading them, as I have just reconfirmed.
But e.g. when he coins a new relevant meme, like Digital Restrictions Management, I do pay attention.
Thankfully a lot of bother care about insanities. They are in the grid of thinking, good people.
The whole free software movement is a an evidence that a lot of people care about insanities. RMS is the founder and forerunner of this impressive socio political movement.