Earlier quoted context omitted.
This is just another anecdote. But here goes. My experience was that there was a long period where your complaint was quite true. I believe that they have heard this complaint enough and have lightened up a little. There are still more and stricter rules than most sites, but the obsession with pruning duplicates seems to have cooled.
And my opinion as someone with high reputation is that letting in silly questions has ruined the site and made me stop using it. SO is not a support forum, it's not your teacher, it's a place for interesting knowledge sharing and if the knowledge is drowned in noise, well it's just noise then.
This, to me, is the mistake that SO made. Developers helping developers is the engine that runs the site, that's why people come.
The body of interesting knowledge is an emergent property of the support forum/peer-to-peer teacher.
Eventually they tried to put the cart before the horse and traffic has dropped.
It's OK that you're done answering "how do I change font color with jQuery" for the thousandth time and are only interested in the occasional very interesting question, because there are people behind you who do want to answer that question. That will help them grow to get where you are.
If we don't allow new generations of users to go through that process we went through, then StackOverflow has an expiration date.