Anyone else just nest a bunch of ifs and loops and feel absolutely disgusted but it works so you don't want to refactor it?

Every goddamn day

I mean, only if we have such multidimensional structures and complexity became a necessity, what's wrong?

(OK, I may not approve of nested "if"-s, because I don't see what's below.)

nested for loop sometimes unavoidable, but nested if is too prone for bugs, especially combined with conditions which needs to be bracketed correctly.

Invert if check and use return as an exit. You lose one nesting level and save your sanity. I do those without thinking now. Its just a part of writing clean code for me.

You can do the same inside for if you use continue instead of return. Reads waaay better :)

Nesting means that you have no control flow.

No control flow means the code is shit.

No discussion.