"So why do people provide advice on issues they have no experience in?"
The answers I have so far from people:
1. I hope it's helpful to someone (regardless of experience)
2. I hope it's helpful to someone (I've been there/am there)
3. I hope it's helpful to someone (no experience)
4. It's just an option for them
5. They have more options now
6. I know what I'm talking about, I thought about it while I drank my coffee.
7. I don't have a clue but this might work for them..
8. Don't ask me, I don't know.
9. Google it.
10. Hang on, someone's Skyping me..
11. What's an aspie?
I think 6 and 11 are my personal favourites and my experience of asking people is that the first 3 are the main reasons. I get every bit of info I can on things to try and give what I will call an 'informed opinion'.
Personal experience is my entire 40+ years of struggling with trying 'normal' and finally someone saying 'Do you think you might have...?'. I also work with and for people with learning difficulties which pointed me in the right direction.
People do this stuff out of concern, 'in the hope' that it's helpful, even professionals, this is like asking a doctor, "Why do you want to be one?"
I read with interest, other people experiences or thoughts and find useful something called 'Reflective Learning' - you experience, review, adapt/develop and then test as the next experience. Practicality, a need to know and logic keep me moving along, developing and hopefully on the right track where something I might say or do might 'click' for someone and make a difference for them. I've learned a lot from the original question and peoples thoughts on it, I know some people have learned what an Aspie is, today