Let's remember that this is an international forum, so you're likely to encounter both native and non-native English speakers. Sometimes unintended meanings and nuances creep into posts because a poster could be unaware of how his thoughts translate into English; ie it can be grammatically correct, perhaps even correct for a formal situation, but will sound horribly condescending in informal situations like this. It's always a good idea, I found, to clarify what a poster really means before jumping on him.
How do I know this? I've been living with a German for the last 7 years now.
