Although there are some rational, helpful replies to the OP's question, I always wonder when others step in with derogatory posts that assume the original poster is not actually seeking information .. those that do not know the OP, those that do not know the motivation, those that have no information other than some assumption they have made ..
"often wondering" is, of course, fine. However, your tone suggests that you are sitting in a high place looking down on the behaviour of others. Given that your post provides no information to help the OP what do you suppose motivated you to share in this way? And are you claiming that you DO know the OP? This is an internet forum - the person you are speaking to is unlikely to be your next-door-neighbour. As for knowing someone's motivation - good luck with that.