I had this conversation recently. Not only are search engines and comment threads getting filled with AI responses, but people are increasingly sounding like AI themselves. This makes it even harder to distinguish.
Related to code quality, I've noticed developers picking up tricks from AI. Like using feature/xxxxx as the branch name. Last year exactly zero developers used this convention. If any used paths in their branches, it was almost certainly their name. Now everyone uses this convention. Though, they do use correct capitalization instead of lowercase freaking _everything_ that AI does.
Related to code quality, I've noticed developers picking up tricks from AI. Like using feature/xxxxx as the branch name. Last year exactly zero developers used this convention. If any used paths in their branches, it was almost certainly their name. Now everyone uses this convention. Though, they do use correct capitalization instead of lowercase freaking _everything_ that AI does.