That was sort of my experience as well. I already had more than a decade of development experience, asked maybe two questions in a 6 month window (not easy ones), and instead of answers got negative remarks. Never logged in again.

I should note that the first time I asked question, I also spent hours reviewing other unanswered requests - and if memory serves me - while I didn't have solutions for any of them, I gave concrete examples of how to debug the problem(s) to narrow down the variables.

I'd estimate that this was around 2012. Never went back after that.