Ill agree with alot of that, but I have to point out that some people(including me) really want to be sure of a purchase if its fairly expensive, and the best way to be sure you're getting answers to your own questions is to ask it yourself. Say he saw a thread where the budget was $900 and details were SLIGHTLY different. He might not be sure that it would apply to his situation. Like in this thread he said he wanted to spend the least possible, which is not stated in many other threads. I do think he could have gotten information about what to look for in cameras off those threads though.
Ask it yourself, yes, but I'd personally want the best opinion I could get.
One which you're more likely to find on a cinematography forum.