Aaron:

"Here's a little bit of unsolicited advice to open source enthusiasts speaking in public : SHUT THE FUCK UP! At least, until you can learn to leave the BOFH mentality at home and complete a sentence without saying uuuuuuuuhhhh four times or chucking derisively at the decisions, involving closed source software, others have taken for reasons y, x and z."

Thanks for telling it like it is. Being a little too self-righteous can kill most arguments in the egg.