Agreed, I tend to take the number of times I'm asked a question in person by someone new as a signal that a topic is worth writing up.
It's also easier to sit down and come up with a well thought through answer that you can link out when asked again. Opposed to paraphrasing each time and potentially missing key points/clarity.
Writing is, publishing and noising the channels isn't. I'm afraid I find experimentation like that at cost of other people's time and attention to be a bit petty crime.