I also think a huge amount of these tend to be pretty typical conservative-developer overconcern (see Yegge's Notes From The Mystery Machine Bus https://gist.github.com/cornchz/3313150), governing yourself on fear, that is probably not really as fully warranted or deserved.
But I'm also a huge fan of wild & fun & diversity. I also love that we try & do other things, that programming languages are not a Last Man Standing situation, & that we have great technical ecosystems with caring trying folks finding new ways to move forward & progress like Elixer. I look forward to seeing what lessons there prove really valuable (and perhaps aping them)! It's a choice in JS world but I do use immutable.js, for example, and it's great & as described as an advantage above. Ditto for some fp tools, but often I will mutate & use effectual/imperative styles, I often find there are significant performance or understandabity wins.
I would say, yes, the cost of talking vs snarking may be real, but it doesn't have to be this large & well examined a list as you've madd. I don't like JS, the amount of dependencies terrifies me. I don't like JS, it's too fragmented. I'd rather use Elixer, I like having a good actor model underpinning my ecosystem. Sharing some sort of tidbit can help calibrate where a person is & turn destructive contagious negativity into healthy discourse.
