Short URLs are very popular now. They look very concise and are easy to copy and share. Many people like this kind of stuff. However, there are good things and bad things. The popularity of short URLs has attracted many people with ill intentions. A new way to do bad things, including but not limited to short URLs pointing to dangerous websites. Short URLs cannot allow users to know the target address, so they cannot assess the risk of their actions and are often used with fear.
