Re warranty - check out the RMA process from where you get your keyboard. Keychron is immensely popular currently because they offer lots of choices, and a great out-of-the-box experience, many people won't even want to customize it further. Its RMA process is awful though, if there are quality issues (and actually, there are), you have to ship it all the way back to China at your own cost. The common recommendation with them is to buy through a third party who are easier to deal with.
Re material - although PBT is considered superior, at premium keyboards/keycaps pricing, thick high quality ABS is just as good.
What must be inferred: mechanical keyboards, in the context used by the articles, are like sneakers: They're what you think they are, but in the context of this and related articles, are referring to it through a hobby subculture.
Re warranty - check out the RMA process from where you get your keyboard. Keychron is immensely popular currently because they offer lots of choices, and a great out-of-the-box experience, many people won't even want to customize it further. Its RMA process is awful though, if there are quality issues (and actually, there are), you have to ship it all the way back to China at your own cost. The common recommendation with them is to buy through a third party who are easier to deal with.
Re material - although PBT is considered superior, at premium keyboards/keycaps pricing, thick high quality ABS is just as good.