It is interesting to watch how this thread has evolved since it first was posted. Back in the day people thought it was actually safe to buy drugs with bitcoin. However, most mixers have been shut down and they should never have been trusted in the first place. Of course now we have some very well used coins such as monero and plenty of other even better privacy coins on the market.
Unfortunately, anecdotally it seems that people who do not trust in crypto and only know what they see on the news still think bitcoin is primarily used to buy drugs. I think that sad truth will be with us for a long long time.