can't speak for mograyback but it doesn't make a lot of sense to me when people are criticized for bringing up questions or observations of heuristic value. It's also is understandable for some people to not want to want to understand this type of thinking.
But he is not just asking questions. He has continually brought up the same questions, and his questions are answered. He then disappears and pops on on another thread asking the same questions. Unless you answer the questions in such a way that agrees with his half baked theories of conspiracy he is not satisfied.
Further, like he has already done in this thread, when someone asks for any sort of evidence he claims he posted the links before and doesn't want to do it again.
For example last week when I pointed out that eyewitness testimony is suspect, he said that in Colorado he could show 5 people who said the same thing. When I asked for proof, he eventually provided links to two people saying different things that didn't show what he claimed it did. When myself and another poster kept calling him out on it, he went to another thread and tried the same bullshite, and basically pretended the first thread never existed.