I will have a stronger opinion about chairs and keyboards not because I think they're more important, but because I have more experience with them. And that experience is far easier to gain.

Most of the consequences of choosing a particular programming language or technique will only come out months or years later, and often those results will have a very muddy connection between cause and effect. I'm way less likely to go on a forum and talk confidently when I would have needed to do multiple projects taking years to have a definitive answer.

On the other hand give me a keyboard for a day and I'll happily wade into an argument about it after typing a few thousand letters on it.