I disagree.
As I said, law varies by place and subject. Those differences matter. Some subjects are generally consistent across jurisdictions. Some are not.
Who knows which is which? The professionals.
Who has the knowledge and experience to correctly interpret different experiences in different circumstances? The professionals.
Intelligent people frequently form entirely inaccurate views of subjects in which they are not experts. We mock TV shows for having VB GUIs that track IP addresses. Lawyers feel a bit like this when non-lawyers begin swapping legal advice.
> By sharing our legal experiences, we'd all become better at understanding the specific questions we should ask a lawyer, should the need arise.
Lawyers are not unapproachable gods. They are service professionals like any other. You ring, make an appointment, and talk to them. It's really very simple. They will ask some questions and take some notes. If it's a simple matter they will give a simple answer. If it's more complicated they will ask to get back to you.
Self-help and Stack Overflow is fine for writing most low-risk software, where bugs can be patched. It is a risky strategy with law. Some actions cannot be undone. You can't just revert to the "before I made that legal blunder" branch.