Mine got me interviewed by the FBI. So there are some downsides :p
Me and a bunch of other people met online and talked about programming, hacking, etc. All of us were teenagers at the time. One of the people, who I considered a good friend, turned out to be this guy:
https://www.washingtonpost.com/world/national-security/us-id...
They found the logs of our IRC conversations over a period of 5 years and found a bunch of incriminating stuff (just teenagers shooting the shit, trashing people, and talking about hacking and stuff)
It's unpleasant to know a bunch of people read your private stuff. TBH, the username is pretty similar