That is a foul trick, just to copy someone's concept and develop your own.
Why you just can't think anything for yourself?

I think this is a great idea, since you can't send any messages with the one you are trading at mtgox. But now if someone buys/sells from you, you can send them a message.

This definitely is a great addition to trading at anonymous markets such as mtgox.
As the bitcoin will become more popular, so is the need to communicate with each other about bigger prices. After all a $1000 is a large number, and if I receive this from a person I would like to thank him.

xkyuz