Usually pointing out someone's flaws is way of showing everyone how insecure you really are. I have all sorts of friends...fat..skinny..old..young..every color you can think of. What usually happens is what you don't like about someone you don't even know is that you are afraid. Afraid of being found out of a nasty inner self...Don't worry..we know nasty..we know you....and we pity you because your future holds nothing worthwhile.