then take sarcastic
who cares, this is not even my mainlanguage. you should get the point.
Well in fairness if english isn't your main language you do kind of get a free pass but:
1. If you are going to bandy about words like "ironic" and "sarcastic" you should really take the time to look up what they mean.
and
2. There was nothing unreasonable about the OP - he/she didn't know so they posted a perfectly acceptable question. Someone else made an uncalled-for and snarky reply for no other reason it seems than their own edification. Are you saying you have never wondered how to do something that to someone else was obvious?
I would rather be thought a fool for asking a question than be an idiot for not.