The problem is the way it is designed. Basically it seems like a phone help bank where you call in and they direct you to some expert that knows the answer.
In this case instead though they have an army of folks entering the answers in advance (or getting them from databases they pay to access) and then you are directed to such an answer if it happens to be entered. (Though of course there is a great deal more hand waving and I am sure it is complex
) Still the point is it does not have the answers many people want to very simple questions let alone the answer to questions that traditional web searching finds difficult to answer. Instead it seems it has a variety of answers to specific questions. So if your answer happens to be there it will speed up the time to get it, but otherwise it is just useless.
The thing is I wonder if the end goal is a subscription service just like encyclopedias failed to sell in the internet age.