Giving a valuable service away for free on the internet is like putting out a bowl of candy on halloween night with a sign that says "Be nice, please take one,"

Giving a valuable service away for free on the internet is like putting out a bowl of candy on halloween night with a sign that says "Be nice, please take one," and then walking away. There are a lot of not-nice people out there any nobody should be surprised when all the candy is gone in five minutes.