Their very first answer states that as restaurant owners, they wouldn't want to serve a pedophile. Besides the fact that this argument is borderline an 'argumentum ad passiones' (appeal to emotion) and I'd obviously hate doing business with anyone who has such thoughts and ideas, here's a newsflash: pedophiles are dining at restaurants and shopping in malls every single day, since they have well-working money (cash) that is untraceable not traced
Here's a more fundamental thought: pedophiles and murders have to eat! If we ban them from restaurants, we can't allow them in supermarkets either, right? And we won't allow them to grow their own food, so let's starve them to death? Some sort of mob mentality slow death sentence? Somehow it sounds less noble this way than just rejecting them from your restaurant.
The reason blacklisting is wrong is a similar reason mass surveillance is wrong. It's not a new debate. You can't just label everyone guilty until proven wrong.
The whole concept of "taint" is a huge sliding scale. Being gay is illegal in some countries, let's reject them too! And anyone who had sex before marriage must burn in hell, right? And the guy who was speeding yesterday, you wouldn't want to be associated with that
wreckless behaviour, right? And freshly mined Bitcoins? Those are the worst of all, let's not associate ourselves with the environmental impact fresh Bitcoins have.
If you look deep enough, you'll find a reason to taint
every piece of Bitcoin out there. Mission accomplished, Bitcoin is dead.
Would you deem it a sensible idea to call everyone's bank and ask if they have had suspicious activity, such as something hinting at them buying fucked up media online, before allowing them to eat at your restaurant? Or if the money has merely passed hands of a known pedophile?
You don't even have to call the bank, I doubt there's even a bank on the planet that hasn't processed money from criminals. If you have a bank account, you must be a criminal. Let's not only cancel Bitcoin, let's cancel all money.
I can't really help the sarcasm today.