Sarcasm, it's not just a noun - it can cause detailers to go insane! :D
Agreed; it is hard to create a post that will be read by others with the same intent that was meant by the original poster. I try to avoid sarcastic humour online because of that very reason; many will take it seriously and you can get in a tight spot in a hurry.
However, it is always refreshing to converse with like minded individuals!