You make good points (I'd never even thought about porn but it's a good one definitely). However, bitcoin should not be promoted as a currency for these things in my opinion. The idea that bitcoin is the currency of perverts and drug addicts will alienate many possible adopters of the currency. I'm not saying that we should discourage the use of it in these industries, but rather not promote/discuss them because when we do we get the current situation we're in: politicians try to crackdown on it claiming that it's a currency for drugs. Again, I have no problem with the use of bitcoin for these things but I don't think that it belongs in these forums. A third party website, sure, but this is where journalists and pretty much anyone wanting to learn more about bitcoins will come to and form their opinions from.