I totally disagree!
I have 50k rep on StackOverflow, and roughly a quarter of that comes from the questions I've asked (I have 213 questions, 166 answers). In fact, that is my favorite way to interact with the site; I personally get excited when I find a question of mine that isn't answered on StackOverflow.
That said, writing a good question is an art. The impression that SO has a culture of not asking questions I think is at least partly impacted by the aspects of the culture that came into existence to deal with the huge deluge of really bad questions that it gets literally every second of every day.
Then, even if you put in the time and effort to actually write a well researched and thought out question, it's not uncommon to get close votes and downvotes. This is unfortunate, but it also usually comes from a small fraction of users who see your question within its first 5 minutes of posting. Once that time has passed, and folks start arriving at your question from Google, the upvotes come in as a steady stream.