For this occasion, I just logged in to my SO profile; I've been a member for 9 years now.
To me, back when I started out learning web dev, as a junior with no experience and barely knowing anything, SO seemed like a paradise for programmers. I could go on there and get unblocked for the complex (but trivial for experts) issues I was facing. Most of the questions I initially posted, which were either closed as duplicates or "not good enough," really did me a lot of discouragement. I wasn't learning anything by being told, "You did it wrong, but we're also not telling you how you could do it better." I agree with the first part; I probably sucked at writing good questions and searching properly. I think it's just a part of the process to make mistakes but SO did not make it better for juniors, at least on the part of giving proper guidance to those who "sucked".