Meeting someone online who you don't know can be dangerous, as you don't know who they really are or what their intentions are. It's important to be aware of the risks associated with meeting someone online, such as the potential for identity theft, fraud, or physical danger. It's important to be cautious when considering meeting someone online, and to take steps to protect yourself. This includes doing research on the person, only sharing limited personal information, and meeting in a public place. Ultimately, it is important to use your best judgement and practice safety when meeting someone online.