I wonder if it's in the nature of trads to do everything anti-mainstream, including secular parts of life like food and the software we use on a computer.
I think there are some who will always automatically do what's not mainstream, but that's essentially no better than doing everything that is. Then, I think, there's another class of people who look at the facts, and make their decision based on that.
For a lot of people, for instance, they'd never dream of leaving Windows. It's easy, it's familiar, and best of all, all the plugins actually WORK, and you don't have to learn any text commands to install things. For a lot of people, that = better. Never mind that over time your system will eventually come to a virtual grinding halt. Or that it has like... ZERO customization. Or that it costs $100 or more to even buy (yeah, even if it's tacked "secretly" onto the price of a store bought "bundle" computer). Or that nearly every piece of software for it costs $100 or MANY hundreds of dollars. Or that you have to buy multiple copies to use it on multiple computers, or you may go to jail for it. I could go on. But for SOME people, they look at the pros of windows (all your plugins install effortlessly and work right off), and the cons of linux (that they don't, and that you may have to step out of your comfort zone and even learn a couple lines of text commands), and decide ultimately that the CONS of windows far outweigh the pros of it... or the cons of linux... a perfectly free, extremely customizable, very stylish OS for which you get pretty much EVERYTHING for free.
That's an example of what I'm talking about. If you look at the pros and cons of both, and you spend more time on your computer than just checking your email, the frustration (along with those hundreds of dollars) can, for some, add up VERY quickly.
For me, using non-mainstream stuff is because of two factors... the price, and how restricted I am in it's use in terms of what the software does for me. I used to be a Lotus Word Pro junkie. Now I use open office. Why? Not because it's not mainstream, but because Word Pro got updated like... once every century, and cost a lot of money. The graphics were ancient, and in retrospect, it had it's limitations. Open office is updated like... every two seconds. And you can add features if the tons of them it already has doesn't suffice, such as if you really can't live without that French dictionary or oodles of clip art.
So while it's true that some merely go against the flow as blindly as others go WITH it, for me (and I believe for others as well), it's a matter of looking at the facts... such as cost, features, etc.... and making one's judgment based on those facts. In this case, the pros and cons... what you can live without, and what you can't.
In the software world, you get your choice between companies trying to pinch pennies, who therefore very often pinch features on "new versions" (virtually nothing changes in them) while raising price tags. In the open source world, you've got people doing all the work for free, and adding to it everything they themselves wouldn't want to do without. And since the work is all free, the sky's the limit. There's no release date when the product is simply done for good. It's always getting better, getting fine-tuned, getting bugs fixed, getting new features.... AND... unlike most paid software, you often have the option of adding all kinds of features they didn't want to put in the original software package everyone downloads.
The main con of open source is that sometimes it misses a feature or two that you get in the most well known (and high priced) paid software. In time, that CAN change, though, since the open source software is always being developed. But the price is right, and sometimes it has other features that the paid software did not have (or that you could never find in it if it did)! But who can afford to pay hundreds of dollars for a couple features they may not even really, literally NEED to have?
One example is, I abandoned a very, very awesome Japanese word processor (99% of the way, anyhow), though it had COUNTLESS features the free one did not, and looked a hundred times better too. Why? The paid one... you guessed it... starts out at $99 or $100. And the ancient version I have can no longer use the ever-growing files for the best Japanese dictionary anywhere. And that price does not include additional true type fonts. The free one CAN use the world's best digital (and free) Japanese-English dictionaries... but regardless of their file size! It does what I need it to do (unless I have to look up kanji by radical), and... it's free. Yeah, it can't even do bolds and italics... but it writes in Japanese, and that's the main feature I need, even if what I write looks about as exciting as something written in notepad.
In software and everything else, just "going with the flow" (or blindly going against it) is never a good thing. God gave us the ability to reason and look at facts and make judgments based on various factors presented to us. This is the way we ought to live and look at everything. Not, "what would other people do?" (whether to go with it or against it), but rather, "what makes the most sense here for me?" In morality, it's whatever is right. In software, it's very often whatever is free, just as long as we can accomplish what we need to on it. If not, we'll opt for the paid software.