> I don't think any reasonable person would take him less seriously just for using software that, in many cases, he has no other option but to use.
It's not a public stance for rms. He simply doesn't have the need to use non-free software on his own devices. He will (and has) in a pinch, use someone's windows machine, much like he will use a someone's mobile phone to make a call. He's very pragmatic in that way: he doesn't want non-free software on his devices, controlling his life.
>I mean really, this guy doesn't even browse the internet because websites have proprietary software and instead uses some kind of software to get info off the web - that's extreme.
This is another case of his reputation preceding him. He doesn't casually browse the Internet because he has no time for that. Any interesting website he wants to read he has (automatically) sent to him by e-mail. This way he can process everything in batches when he has the opportunity, regardless of whether he has a connection at that time.
In short: rms is't making any sacrifices in order not to be perceived as a hypocrite. He has simply arranged his life in such a way that he doesn't depend on any proprietary software. And these days, it's really not that hard anymore, when you think about what you really need, software or otherwise.