Daniel I think its the way you reply to people bit like texting you can never quite understand if its meant to be nice or taking the P**s.
Your more than likely a really nice guy and no there's no harm in a little banter.
Why do people have to jump down other peoples throats over them posting a question? I mean, it's not as if this board is your own private chatroom, it's for people to trade information is it not? So why not let them ask their questions and let other people respond instead!