However, the article doesn't tackle the main difficulty I have with being helpful: laziness.
I really struggle to help people when typing their question in Google verbatim would lead to an excellent answer, especially so when I am the author of that answer.
Another common one is questions that should be answered with a quick call to customer service.
Keep in mind that nowadays Google does not always gives exactly the same answers to the same question asked by different users, it takes into account their query history as well. It might happen that Google built different associations for word in query for you and for other people... that's especially likely for topic that you're an expert in (meaning you likely did a lot of Google searches on related issue in the past).
This extends to communities where the answer has already been provided several times.
I suppose the only thing that would be less effort would be to delete such questions. Perhaps a "post deleted for lack of effort (+ FAQ URL)", button. Would be highly efficient, but feels rather stern to me.