I feel like community forums for big companies trend towards this steady state of mediocrity since the forums are usually treated as a dumping ground to try and offload support obligations, giving the appearance of caring without having to add anyone new to the payroll. The people who become absorbed in these forums are in what is effectively a parasocial relationship and are ill-equipped to answer the questions because their knowledge of the product rarely goes beyond surface level, so their answers tend to fall into the "happy path" category, the ones usually available in public documentation or with a basic knowledge of computers, like how bugs caused by configuration errors introduced in past software versions can frequently be fixed by reinstalling (newer versions of) the program or that restarting can fix random bugs that accumulate the longer the system is on.

In this regard, LLMs tend to be more useful in my experience (and I suspect this is playing a part in Apple's discontinuation of the forum, though the article is cut off by a paywall so I don't know if it mentions this). They have the same pitfalls of happy paths (and hallucinations, of course), but they are quite good about digging up some random tangent from a GitHub discussion for a completely unrelated product five years ago that ends up being exactly what you need with some extra prompting.