I understand your point, but I don't think you analysis is bad content as you stated. I believe that is subjective. You offered highly valuable content at that moment. Information does not last forever as you stated. I believe information should be looked at more of its value then amount of work or time put into it. Someone can spend hours on a blog post, but provide absolutely no value. Someone may take 5 seconds to prepare a blog post, but have a powerful message or information to give to individuals.

Just my thought process on it!