I check Clarity answers every day looking for good questions to answer. I find that many people don't write questions that allow me to truly help them because their questions lack detail and lack context of their particular situation so I can only provide generalizable advice or answers. My advice to everyone is provide as much detail as you can and write a question that solicits a very specific answer. I will answer those questions every single time.
Yes, I do. When I have a question where I seek generic advice (welcome from many experts since the questions is more generic with no specific use case), I posted it on Clarity questions. When I find an expert whom I can trust for right and accurate directions, I can go for the call.
If you have specific questions that you can discuss with an expert (say over a coffee or a pizza), seek advise from a expert by calling. Else, post it in Clarity QA