> And I put up a note on my blog offering physics consultation, including help with theory development: ‘Talk to a physicist. Call me on Skype. $50 per 20 minutes.’

Interesting! A lot of times, this is what I want (as the asker) -- to be able to do quick back-and-forth with someone genuinely knowledgeable to identify where my understanding is right and wrong, and where I need to look next. I'd be interested if there were a general platform where you can hire experts on these terms. (Not interested in physics though.)