I think it may be related to what attracts talented individuals. A talented individual who is customer oriented, who can read inquiries and understand precisely

I think it may be related to what attracts talented individuals. A talented individual who is customer oriented, who can read inquiries and understand precisely what the problem is, has the technical knowledge to identify the cause of the issue and appropriate responses, and can formulate an answer in a clear and concise language will very unlikely spend time on these forums. I can easily guess four reasons for such an individual not to do that: 1) Those who post requests often demonstrate a despicable attitude on FAANG platforms. I think this is because they have an expectation of result once they are interacting on the editor's official support channels. 2) Because these channels are the "official" ones, I would speculate and guess that a FAANG company should hire the right people to be on these channels and help their customers. They don't hesitate bragging year after year that they earn billions, I guess billions give some latitude to hire adequate support personnel. Personally, I would rather answer a question on a stack* website than any FAANG board/support forum. 3) Proprietary platforms & non-neutral answers: on a FAANG tech support forum, you will see many, if not most, answers oriented to hide or minimize anything negative or insufficient about the products/services of the FAANG. 4) They attract condescending, and often incompetent, "specialists". When you spend a few hours looking for answers on Apple's or Microsoft's tech support forums, you clearly do not want to be part of this, of neither side.