You are responsible for what you send.
Do not send cards to people that you do not know
Don't like the rules, don't use the site
Use of this site is AS-IS, there is no guarantee that your card will make it to who you sent it too
but in 2 years of using this script, nobody has complained of a card not reaching who it was sent to.
Also please remember that once an email host receives the card, it can also be lost in there system.