> I think there are just multiple kinds of developers.

I've seen this very glaringly. I love Ruby and Rails, and want to leverage the stack as much as is reasonable. I've come to realize that there are people who really would like to write 100-200 lines of Java for every line of Ruby I write, just so that they "have control." I think they have no idea what they're talking about, but I have no influence over them. The fact that I'm writing my 3rd application in 6 years which does something that entire teams of outsourced developers could not do is, surely, just coincidence.

Yes this is mostly it. Some of us just have a different world experience and are wired differently; the thing with engineers is that they don't like subjectivity - they need absolute answers, but it's really like debating who is better Metallica or Nirvana. The type of programmer who likes Ruby usually appreciates aesthetic code, freedom and expressiveness. The type of programmer that likes Go usually appreciates strictness, one way of doing things and performance. In the end to the average SAAS startup it really doesn't matter which of the popular languages you choose, it's been proven countless times that any of these languages can build monster size companies

Ruby was heavily inspired by Perl. I know a few people that moved from Perl to Ruby and felt quite a home. (Personally, my path away from Perl is likely to be to TypeScript on Deno, since if I'm going to make a change I might as well pick up some major benefits along with the normal set of trade-offs).