I’m generally sticking to the ignore side, not only for vibe coded train wrecks, but for everything that looks low effort. Responding to such posts is a waste of time. Even if you do eventually untangle the mess, a member of the low effort brigade will soon get stuck again in the same way. After several iterations, chances are they’ll completely give up their little excursion into “game dev”. The time you’ve put into helping them will be for nothing.
The only reason for engaging may be if the problem itself tickles your hacker/sudoku braincells and there’s some opportunity to widen your knowledge or exercise your problem solving muscles. Unfortunately, most of the mis-vibed questions are from the desolate island of failed CharacterBodyXD boilerplates.
I often do give the benefit of the doubt though by initially responding with a short, probing one-liner. If the OP starts engaging and appears to be curious about things, I’ll give them more attention even if their code looks generated. I reserve writing actual code only for the people who seem to be genuinely applying themselves.