Courtesy is a part of etiquette, however the OP made the same post twice in 5 minutes. That is not enough time to consider a post ignored. You can't miss the answer because it's emailed to you automatically. Even if you deselect that option, the post is still recorded on your profile activity. You can use loaded statements and capital letters to spin this any way you wish, but it does little to change the fact that there are many reasons that general etiquette is a necessary part of any well run forum.
Snaike was not rude to the OP. He was direct and informative with both the answer and the etiquette tip. He even was nice enough to link the OP back to his first thread. He is also correct that duplicate threads are non-productive. In fact, they are a waste of server resources that someone else is paying for. The same goes for cross-posting, thread necros, trolling and a variety of other forum activities that are generally deemed to be bad.
Also, your attacks on Snaike and Faterson were both unnecessary and unprovoked. That, I'm afraid, was not so courteous. =(