He thanks them and corrects the error. If he doesn't have time to get to it right away, a screen grab of it gets pinned as a reminder for him to go back in later.
He actually responds rather well to feature requests. It's people whining about the puzzles that he doesn't respond well to, and at this points it's more because he's already said that he's not going to change it 100 times, and people continuing to ask are, in his mind, just doing it to troll him.
You know what, thats fair, I dont really mind the puzzles, just dislike the way he goes about it sometimes with random bits of information spread across multiple events that can lead to a lot of backtrack if you haven't been dutifully taking notes. The shopping maze was perfect, and I truly hope it becomes the standard from now on, to be honest, I wouldn't even mind having to note random bits of information if it actually happened in an open sandbox you could explore to find answers instead of hoping to find that one event with that one information you need.
My biggest gripe is just with how counterintuitive the sandbox aspect of the game is, sure you can go around and memorize the usual places that each character frequents, but then their events are laced to someone else's or you have to go in a rather specific day, or call them at an specific period of the day and this can be frustrating.
There's reason why whenever an update drops I prefer to just check out every single location and option while skipping the story to find out the correct order of events before actually enjoying it. In the end it doesn't matter how good the story is, or how the characters are really well written if you can't have any sense of enjoyment when actually playing blind, and this turns off many potential players, I have my doubts if I'd ever even finish the first chapter without the guide mod.