I see it mentioned often, but it's a completely foreign stance to me. I'll take contributing to existing project over writing one from scratch any day, even if it's shitty enough to require general renovation. It's so much easier to jump onto work when there's an existing skeleton already than do all this boring grunt work to set things up and decide on layout that maybe was exciting when I was still only starting to learn how to program, but hasn't been for decades anymore.

I could see LLMs affecting that though. Their ability to output shitty and yet somewhat functional skeletons to work on manually further is just spot on.