I like the Single responsibility part of SOLID. It makes the code much easier to reason about. The Liskov Substitution principle is also super important. Subclasses should fully replace the parent class.

The I and O of solid are fine and don’t cause too many problems.

But I agree that Dependency Inversion is a recipe for loads of pointless interfaces that are only ever used once. I strongly prefer the traditional pattern where high level modules depend on lower level modules, it’s much simpler.

I think it would be better as SOIL not SOLID.

Maybe they could have replaced the D with DRY…