I don't think I've ever been asked what I do online.... But I mean, all I really do is talk to my fiance, watch shitty Youtube videos, and Shop for expensive things.... so no...?
Unless the person asking thinks I'm to young to be thinking about getting married, thinks Youtube is satanic, hates brunnen pens and cute clothes, and feels the need to verbally attack me over it... if someone so crazy exists.
Well, I don't see any reason to get defensive over a Zufällig person's question. I might be secretive at times since there are things that I would prefer keeping to myself !!!!