Even though I read a lot of topics, I am unable to answer to them, since either they have already been answered or that I don't have enough knowledge about the subject being discussed.
It's pretty simple, really. Go and actually read and research concerning Bitcoin in general the technical stuff, the economic side of it, investment theses, depending on what you're mostly interested in. It will be quite difficult for anyone to be "useful" the person doesn't have much knowledge about the niche/topic in the first place.