D had a big blow up over string interpolation. Walter wanted something simple and the community wanted something more like these template ones from Python (at least from scanning the first little bit of the PEP). Walter eventually went with what the community wanted.

This led to the OpenD language fork (https://opendlang.org/index.html) which is led by some contributors who had other more general gripes with D. The fork is trying to merge in useful stuff from main D, while advancing the language. They have a Discord which unfortunately is the main source of info.