To a large extent, I do not agree that we should post the photographs and video of bad behaviour on the Internet. In my opinion, I think posting other people's photographs on the Internet is considered as invading one's privacy. They would feel embarrassed about it and don't dare to face their family and friends.For example, taking pictures of people who do not give up their seats to the others that need it more. That person might be feeling very tired and therefore he or she did not gave up the seat. Posting all these photographs would give Singapore a bad reputation about it to other countries.
However, posting these photographs or videos would let the person to learn his or her lesson to not do it again. In this way, other would do the same thing as what that person had done.