Okay, but you don't have to - and "efficient" coders won't bother, thus starving the commons.

Well, I would argue that if I didn't spend that time, then even a personal fork that I vibe coded would be worse, even for me personally. It would be incompatible with upstream changes, more likely to crash or have bugs, more difficult to modify in the future (and cause drift in the model's own output) etc.

I always find it odd that people say both that vibe coding has obvious and immediate negative consequences in terms of quality and at the same time that nobody could learn or be incentivized to produce better architecture and code quality from vibe coding when they would obviously face those consequences.