Even if that one long term owner provides details of frequent fluid changes and good maintenance? It's the "I won't own this for long so I'm not going to spend any money on it" attitude and no or little documentation that I would be afraid of with multi-owner cars
Exactly. … but many also may not have funds or stomach to spend money correcting/fixing serious problems missed by ill-prepared or misdiagnosed PPI, often creating vicious cycles of cars getting passed around like a bad penny.