Sebstiaan, you are correct. This is not the same as business communications, where we must be sooo careful to be clear in our meaning. As long as we are mindful of the other users different perspectives and in many cases, different languages, then humor and sarcasm and all the rest of the fun part of communication can be used here.
I only ask that we be a bit more respectful and remember why we are here. Just like you said…