You're 100% correct. Sometimes peoples responses may be as simple as, " Maybe this " Which might lead you on a path to research that idea. It can be hit, and miss. Ie: There was a guy up here who just posted a question. He wanted to know why his charging system was over charging his battery ? He was on his 2nd battery with no idea. There were 10 different answers up there. Now he had 10 possible leads, that he could investigate. And that beats the hell out of having no clue. But of course you had to have the one guy who's only 2 cents was : "I couldn't tell you unless the car was in front of me." Why would someone ever bother putting in the effort to type that ?