This is my experience too. I've seen a lot of decisions made due to personal preference, at considerable technical and financial expense. The most recent examp

This is my experience too. I've seen a lot of decisions made due to personal preference, at considerable technical and financial expense. The most recent example was a replacement for a complex YAML DSL, served by spring config sever and interpreted by a python program on every instantiation. This thing was literally using 20% of our CPU cycles over the whole compute cluster and estimated to cost around €6k per month. Long story short I provided a fully working pre-processing solution with effectively no runtime cost, no dependency on the spring config server and a more powerful & type-safe DSL. It was dhall with a bit of bash and python, although you could also have used jsonnet or any configuration language. Another developer with more clout pushed me out in favour of their own solution, which I believe was to keep me away from his political pedestal. A few months later I left and from what I've heard the company is still burning 20% of it's compute budget on this...