You seem to be responding to the following proposition: "If it solves a user's problem, a Q&A is good" which wasn't what I was saying. What I was saying was:

You seem to be responding to the following proposition: "If it solves a user's problem, a Q&A is good" which wasn't what I was saying. What I was saying was: "If a Q&A is good, it solves users' problem(s)"