I think Addicted, although a loud mouthed intelligent fella with a hot wife, missed the whole point. All the examples you gave are from people joking people. It's cool when you know where it's coming from. Nothing wrong with aliases, they are funny and fit many of those who use them very well... Just don't hide behind one when you come after someone..... It's not about sand in the cooch, more about being a stand up fella.
That being said, this is the internet. I agree that people shouldn't get spun up about anything on here really, but they do. To actually put it all in perspective takes a maturity that many of us probably don't have.
Ah fook it. Be nice to one another.