I have a question for everyone.
“How can a semiconductor chip company remain profitable if the chip price plummets every few months?”
Anyone? Going once. Going twice. (Smile)
Now, imagine that you are a Chemist and someone asked a difficult question that you correctly answered. Wouldn’t that mean that you have more than a cursory knowledge on the topic? Wouldn’t that mean you just (more than likely) impressed someone who could quite possibly hire you? If not full-time, then perhaps part-time. What’s to stop you from saying (after you have correctly answered the question of course), “If I can be of further service to you feel free to e-mail me.” Or perhaps, “This may solve your problem in the interim, but I know how to resolve it long-term and its too much to go into here. Feel free to call me and I will give you more information.”
Of course, when they reach out to you, ask them about their issues and offer your services. You have already proven your worth (and given them a free sample of what you can do) by answering their question. (Wink)
There are a lot of Question and Answer sites online (a WHOLE lot of them), but here is a short list of the more popular ones.