If somebody really wants to find you they can. If you give your call it...

Yes this is true, but you don't have to make it easy for them. They will go
after the easy meat first.

The best bet is not to leave anything the robots can parse and dump into a
searchable database. Then nut cases and spam machines with lots of time on
their hands will use someone else. I learned my lesson 10 years ago from
using my callsign for my screen name and winding up with hundreds of people
from all over the world sending me hate mail because some veeagra and sealis
salesmen were spooffing my address.