Nothing sets a mind into cement like being forced into something painful repeatedly.
It's called a "Conditioned Response" and becomes automatic. Hence the term "knee-jerk reaction".
People tend to teach their kids to avoid something that they had to learn the hard way in an attempt to spare them the suffering they had to endure themselves.
"What have they done?", you ask? Pushed flawed OSes out, forced upgrades that slow or break older systems, actively discontinued support for decent hardware (like printers and scanners) to force more purchases, yank support for older OSes that have been working in the industry in some capacity for years in a vain attempt to generate revenue, forcibly downgrade or out-mode existing suites of software that at least work (now that people have been forced to use them for so long) so that they will have to retrain in something completely different so they can simply continue to work, "bundling" software together in ways that make it obscenely difficult to remove without knocking down their house of cards...
Windows ME was a seriously flawed OS.
Windows Vista was as well.
Windows 8 has so far shown many of the same trends as it's failed predecessors, but M$ still pushes it out as if everyone never had to break the bank for the last two serious failures on their part, and wonders why people are slow to adopt anything new from them.
Seriously? We need to look at this with fresh eyes?
I'll be checking mine for a M$ logo before I adopt anything like that wetware into my body.
Heck, I don't think I'd want a Google logo on it, either...