im not buying or using drugs but i just want to share my thought about this. anyway, some people may use bitcoin in buying drugs or any illegal activities. this is because using bitcoin as a payment will not require you to divulge your real identity. thats is why some prefer to use bitcoin in dealing with illegal acts.
yeah apart from you buy drugs or not, bitcoin is a payment method that good for you, because it provides convenience and privacy to you, so no wonder there are many people using bitcoin for illegal activities