Being a tool video (you can use it to find out more about the messages from people you don't know and they are not in yout friends list on Facebook) you can look it up and perhaps you can learn something new. It's up to you if you find it useful or not and how often you access that bad social network named Facebook (from Meta). Be good and behave there, they may not like it if you are bad and they mey forbid you if you don't like their push up ads you can hardly block or if you you say they are stupid.
