Being able to claim the credit can be a lot of the motivation for any project, vibe coded or not. The Princess Crown translation is a great example. The two OG devs sat on it for a decade and largely abandoned it, a guy forked their open source code and had it finished to 1.0 in a few months. The OG devs crashed out that someone else used their open source code, abandoning their translation and saying they could “no longer find joy” in it.
They sat on a project since 2012 and, in my cynical view, didn’t want to finish it because then they’d stop being “the guys translating Princess Crown”, and this section of the hacker scene seem to have some asinine unspoken “claim” courtesy, where you don’t make competing projects, so they could own the claim and not actually put the effort into finishing. To my knowledge the new dev didn’t use LLMs either, so that wasn’t even a force multiplier in this respect.