In the past a large codebase indicated that maybe you might take the project serious, as some human effort was expended in its creation. There were still some outliers like Urbit and it's 144 KLOC of Hoon code, perverse loobeans and all.
Now if I get so much as a whiff of AI scent of a project, I lot all interest. It indicates that the author did not a modicum of their own time in the project, so therefore I should waste my own time on it.
(I use LLM-based coding tools in some of my projects, but I have the self-respect to review the generated code before publishing init.)