I don't know, maybe I'm being overly skeptical, but something doesn't add up considering the quantity of these types of threads.
The practice of backup & recovering wallet wasn't common in early days, especially when Bitcoin was less valuable and sometimes perceived as geekish hobby.
So IMO it's not weird to see actual early adopters lots their wallet files, wallet password and have no idea how to fix the problem.
I do agree that the occurance is too high, even if there are few legit cases.