But on the other hand, Rust is a highly desirably language whereas PHP has a historically bad rap. I don't think devs necessarily want easiest. They want whatever is most enjoyable to use. Tooling support also matters. Stuff like static typing, for example, makes unfamiliar code way easier to understand. I've contributed to a lot of unfamiliar servers and I've noticed that ones in languages like Go are a lot easier because the static typing means it's easier to read the code. In particular, I found servers written in Python hard to work with, and it's not for lack of experience with the language (I've been using Python for longer than Go).

How easy it is to run the code also matters. Has anyone tried that with Lemmy? I was gonna run a dev kbin instance to try and make some changes, but the amount of work it seemed to require just to run the server was more than I wanted to do at the time (I really just want as close as possible to a single command way to run the server locally to test my changes so I can verify they work). Ease of contributing is very important for me to actually bother to contribute.

Almost everything is easier than rust, except stuff like Elixir or Assembly and stuff...

But rust is just better than the others. Golang is also decent, it's fast (half the speed of rust is still very fast) and much easier to learn.

PHP is hugely popular. People just don't talk about it because the developers that use it mostly keep quiet and do their work :)