So what? My personal email is probably in a lot of random places on the internet. If I commit the crime of public urination and the authorities are able to ca

So what? My personal email is probably in a lot of random places on the internet. If I commit the crime of public urination and the authorities are able to catch me because they have video cameras in my bathroom, is it a good thing that they can then google around for my email and say "Hey look, we found this guy because his email was registered on this public urination forum! That's how we caught him!"