Given the anecdote she shared relates to doing desktop support for Windows users at the dawn of web proxies, your whole premise seems like a strawman you've erected in order to launch into a non-argument.
(I'm not a prude but seriously I do not need to see YOUR inclinations in that department.)
They walk up to me, they tell me their problem, and I tell them "sorry, I have a Nexus, don't know how it works on iPhone or any other Android phone. Call your manufacturer or your carrier."
Me: Here's how I fixed it, this takes only one step... User: Oh, this stuff is over my head. I don't want to know. Me: In that case, it was magic.
The user ended up finding my boss to commend me for being so easy to work with.
The article you're replying to directly contradicts this. He was dealing with militantly ignorant people, made a change to accommodate them, and it worked.
Author is Rachel Kroll, who has also packaged up and reformated her blog posts into a book: http://www.amazon.com/Bozo-Loop-Rachel-Kroll-ebook/dp/B00878...
I'm not saying the author is one (certainly doesn't sound like it) or that it's even a majority, I'm just saying that when I do need to call for tech support, I understand exactly why they tend to act the way they do and don't take it personally. Some people are just rock stupid and some of that group willfully remain so.
Does that mean all the elitism around IT people is warranted? Of course not, part of your job as support is working with people who you know, NEED SUPPORT. If you aren't down for that job then you really shouldn't have applied, and you shouldn't be treating everyone like an idiot even when you're pretty sure they are. That's what you're paid to do.