Well Gertrude, you abviously have an excellent reason for sticking to (and recommending others to stick to) Windows and the Microsoft camp. Fair 'nuff, if I worked for Ford I'd also try and persuade everyone that Toyota was crap.
vi? Does anyone care what editor you write your code with? Why should they? There are dozens of excellent codesmiths editors for Linux and hardly anyone uses vi that I know.
If I insisted on writing Linux code on a networked Windows machine using a windows editor (so I couldn't debug the code if I wanted to) I'd sure get some funny looks (and no work).
"..there are vastly more people willing to pay me vastly more money for writing Windows software than for writing Linux software." Fair nuff' also - but good Linux coders are also in demend (and well paid) - not all Linux code is GPL and anyway, the GPL only applies if you release your apps, not if you use them in house.
Boxes breaking? Well I dunno, but it's hard to "break" Linux in a way that's not easily fixable and I can't say that about Windows. Be that as it may I haven't seen a kernel panic (or for that matter a Windows STOP message) for a very long time. Both are good stable OSes (there, I've said it).
"I just tell them not to download and install viruses and spyware, like I don't." Well, maybe that's one solution, but not in the real world. I run many layers of (expensive) protection on Windows (starting with a firewalled router), download and try a lot of stuff (not warez) and have yet to be caught. In Linux I really don't have to worry that much.
Horses for courses say I - that's the essence of freedom, you can use any OS you like and if Windows shakes your bucket then go for it. The sad thing is that MS (despite their recent protestations to the contrary) don't agree, and are gearing up for a final epic struggle to retain control of open formats. The fact is that if they were to start playing nice and join all the other kids in the sandpit they'd probably still continue to dominate the world's desktops - at 60% instead of 90% maybe, but that's still a LOT of bucks.
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"Bother," said Pooh as he struggled with /etc/sendmail.cf, "it never does quite what I want. I wish Christopher Robin was here."