Comment by gf000
4 years can be a very long time in a project, especially when the "network effect" hit around that time, where the active user count (and contributions) grown significantly.
Also, the language is quite simple, it's just foreign and you felt more at home with Scheme, so you might not have given Nix as much of a chance. This is the classic "simple vs easy" from the Hickey talk.
Documentation is no perfect, but has become quite a bit better over the years, and many of the problems that still linger are simply architectural ones of the nixpkgs repo, irrespective of language and wouldn't be solved in any other language/DSL in itself.
I was familiar with Haskell and had never used Lisp before using Nix (which was before I tried Guix). The fact that the Nix language was more foreign to me than Scheme seems like an important point against the language. Also, I used NixOS for months; it's not like I just hopped to it and hopped away from it after seeing the language. It was months of compounding frustration.