Not sure how this question went through multiple reviews
I have couple theories:
1. Reviewers sucks
And we know they do. And we put in place something to improve them, but that only made good reviewers get grumpy and not review. Which leaves us with bad reviewers. A good nugget the right way dispensing manual review bans from the moderation team, and flagging those bad reviewers when you find them should help.
we should be more careful when people recommend reinstalling with no information on to whether or not that would fix the person's problem
and for that I have more theories:
2. Tagging sucks
And we know they do. And folks try to fight their way into improving this but it's difficult and filled with hurdles. Checking out the first revision of this question is more than enough to perceive this, which even after 5 people touched the question nobody fixed this in a sensible manner. Until this isn't improved in a concrete way, including changing our naive policies of old, it will continue sucking.
3. The ways to reach an expert suck
And this is extremely linked with the previous point. Experts have to swim trough all the crap that reach us. Is just impossible to find good questions, more so put them in the experts way. That leaves us with non-experts giving counsel.
4. Most users don't know how to recognize quality when they see it
And worse, give low quality content higher quality feedback than they deserve. So, the system to differentiate good quality from bad just doesn't work. I don't remember last time I saw a good researched, interesting question in the Hot List sidebar.
In summary, is a multilayer problem, which can be tackled from several angles, and I consider that every angle should be explored with pointy solutions.