Only I have access to the database. The script I wrote to handle competitions does almost everything for me. I enter the competition details including the expiry date and the correct answer.
When the first entry received AFTER the expiry date is processed, the script closes the competition, randomly picks the winner(s) whose answers match the correct answer and emails me to tell me the competition has closed.
I then look up the winners' details from the database (via login) and email them to the person responsible for sending out the prizes. I don't even send them the winners' email addresses as standard.
I take the issue of privacy very seriously and would never EVER give out competition details to ANYONE unless permission was given in advance.
Competition rules are
here and our privacy policy is
here.
You can rest assured that I wouldn't give out your details and I personally am not the slightest bit interested where anyone lives.
So you are quite safe to enter the competitions. But if you still feel uncomfortable, don't enter them.