True, but it stops someone else from using my email address (which is already in the public domain) for things I have no control of.
I have another email address which is being used by a kid to register on kids sites judging by the Paddle Pop Lion emails I am getting.
On yet another email address I am getting emails about job interviews I've not applied for at Coles, Maccas, KFC, etc. I've replied to them "I have a job but I'll keep you in mind."

