While I do agree with the decision of an Arena Moderator, it is unfortunate that the moderating of inappropriate content is done retroactively.
Some games will explicitly inform you or prevent you from choosing a username that may offend others, however this game simply lets 'em fly through until it's too late, and then lets the Arena Moderators handle the situation. Tough luck for the person who chose the inappropriate username, because now their development as a player of Elements the Game is stunted. They cannot experience the Arena to its full extent and they cannot gain the monetary bonuses as effectively.
Of course, the Arena Moderators do the best they can to maintain a healthy, and welcoming Arena environment to all, but to be fair, I think zanzarino should invest in a proactive warning, indicating to all to-be-Elementalists that should their username be inappropriate, there will result in an inability to fully participate in the game.
I can see both sides of the coin in this one, but sorry Bradley Kintop...
...the system fisted your arena deck.