Ah I remember them pushing t-shirts fairly hard in email at some point a few months ago. I think I got some sort of email or internal Livecoding message about having won a t-shirt or _something_ of the sort. I would have to give them my address to receive the item and considered it but never went through with it I think. From memory they claimed to have made the offer based on some sort of user criteria, like a "You did this so we are giving you a free x!"
A few days later I get another message saying the first message offering the free item was a mistake, and that I wasn't invited to have one after all. Can't say I was too torn up.
Your 10 replies of claiming people should spell out their full legal names in the thread are not making anything better. In the few cases we don't already know their names, it wouldn't make you seem any bit less incompetent or hostile to know their names.
Also, you're going on the record as saying that the important thing here is not to apologize, not to fix the problem, not even to try to explain but rather to point out to people that they should sign their names in an online discussion with full names.
A few days later I get another message saying the first message offering the free item was a mistake, and that I wasn't invited to have one after all. Can't say I was too torn up.