The problem with any online community is that the people who most need to be there in order to get whatever they need from the community (usually social interaction + attention) end up sucking up all the available air, so that the people who merely want to be there eventually wander off and do their specialized, focused work elsewhere. The community then languishes in a purgatory where all the most active people within it are also the least likable, least knowledgable folks.
You can see this in action most of all on Reddit, where any technical subreddit devolves into nothing but new people asking questions and other new people giving wrong answers to them, but with full confidence. Any actual expert on the topic is too busy spending their time doing real work, not sitting on Reddit dispensing advice for free, answering the same 10 questions over and over again for people who can’t use the search feature and refuse to just read the manual.