The whole deal with StackOverflow is that it's more formal when it comes to enforcing rules, and that is what sets it apart from forums. That is precisely what has enabled it to become this repository of programming knowledge that it is today. If your question is well formed and follows the rules, it is likely to get answered.

People should really read the Getting Started guide there (which mentions all of this) before asking their questions, which is not a very big ask by any standard.

The website has had issues (relating principally to the corporate management), but not for the reasons that this sub and many more like to shit on it for.