Since you can never be sure who'll end up with your postings and correspondence, be very careful about revealing anything personal, and caution your kids about giving out any such details on-line. Otherwise, your inbox could soon be flooded, and your privacy further washed away. Your thoughts, interests, and e-mail address are never Lost in Space. They remain available for all to view. Opt out when you're offered a way.
Many experts believe that opting out is worthless.
The hope is that once many of us fill them out, concerned marketers will use these databases to clean their lists of folks who don't want any more junk e-ads. It may help when the spammer gives a real e-mail address. This could be considered harassment, and might get you into trouble. Complain to your own Internet service provider. Find out where to forward offending messages, and change providers if yours is unresponsive.