He is, but sometimes I go cross-eyed reading his books. He likes to explore some crazy topics, which makes for great reading but sometimes confusing reading too.
They made a tv show too, some of the cast being the ones from the radio show. It's definitely in the original doctor who style of special effects, and I really enjoy it!
That already falls apart when the + operator is used for string concatenation so I think the answer is people are using it in a less rigorous sense already.
I fall into the another category. I use Linux because I like how I can customise heavily how it looks and have control over when updates are installed. I do some programming as well which does admittedly work better for me on Linux.
I don't really care about the ideology. I use a Nvidia graphics card with closed source drivers because I want the best performance. Free and open source is nice, because I like how that works as an ecosystem but I'm never going to turn something I want down because its closed source.
I considered dual booting for gaming but honestly enough works and as you say about rebooting just to open an office document, I don't feel like doing that just to play one game and then go back.