HappyHeart, you did not get any warning because there was no need for warning. You did not do anything wrong, its just that we proactively move few things to avoid any future conflicts .. .however I agree that for most of the parts, we do try to send a PM to the poster informing that his post was moved, but sometimes we could not do that because of many reasons.
it has been happened for most of times and not once. I think a PM with a reason should be sent to the Thread starter so that he/she may know what was wrong and not to act again in the same way.