'I agree with IRS' - that should go down well
Its very interesting how you explain Bitcoins. In your view if you have to design a currency how would you go about it? Or, since as you said, anything can be used as a currency, you wouldn't bother?
I think this quote is something you should take note of. It is made by an active member.
May be you should consider promoting the golden goose more than knocking bitcoin. Obviously this is a criticism but not meant in a harsh way. You speak well and with authority over your subject, however, you are their to make friends (investors, players) and catch some publicity.
Most of the people you will be speaking to will be heavily invested in bitcoin and wont want to hear it knocked despite your points being correct. If i was you i would be using the time to explain what bitusd can do and then telling people if they what to learn more to visit the website.
If you still feel its necessary to knock bitcoin then at least point out that it still has the properties of gold as a store of wealth and is easier to transport. There was a quote on Bloomberg recently saying if bitcoin took 10% of the gold market it would be worth 100 times its current value. Now, if that's what bitcoin could be worth without the ability to be used easily as a currency what could bitshares be worth with the ability to carry out evey day transactions in bitusd?
however you decide to play it, good luck. I wish i could b there.