Things don't have to be legal requirements to effectively be requirements. I'd hate to be considered not fit for tech by my coworkers, my boss, a potential employer, ... because of how I like to spend my free time, and if that sentiment is common it is a problem for people not fitting that expectation. Which I think is be bad, even if I personally would benefit from it. And you see people push others out with arguments like this, it's not a theoretical thing. (I'm not saying the original commenter is doing so, but explaining why I read the comment as negatively as I did)