Yes. Did this question help? If so, then yes again. Because I was helpful, that means that this site is in fact helpful. But only if people actually help. Sometimes it is just nonsense. But other times it is genuine help. So, if the people are helpful, yes it is helpful.
I try to answer as many questions as I can that I know right of the top of my head. I will Google something's if I don't know and if that doesn't answer the question then I won't answer it. I don't want to give out things that are not true!! :)