Bitcoins should not be used this way...
It makes crypto currencies look bad, plus the media.. it can destroy btc.
Nope. If you adopt bitcoin as a type of money, you must know that bitcoin will be used for many bad activities just like how money is being used right now
He said "should", not "must"... We know it could (and it is) used to buy drugs and another shady stuff on black market, but it's not good and only makes the Bitcoin image even worse for laymen which don't know about Crypto-Currency, about how good it can be. They will think Bitcoin is a thief's currency, used by terrorists, drug dealers, assassins, mercenaries, contrabandists...
Don't the words "should" and "must" mean the same thing? Anyone who has a functioning brain will be able to realize that anything that has value will always be used in shady stuffs. It's inevitable. Let's face it. You can't control these people. You can't just say "stop" and then all the shady transactions going on (regardless of which currency) will just stop.
It's because of the Silk Road that's why people look at bitcoin's as a bad currency. Whenever someone tells that to me, I just say, "Let's talk about your precious fiat for a moment." and make them realize that the amount of illegal transactions that has happened in bitcoin is just a small fraction of what's happening in the real world.
Bitcoin's image is already ruined for a long time now. No need to please these mindless people who aren't even capable of looking at their own dirt. We don't need them.