No I wouldn't. But the claim that most drug dealers don't accept anything other than greenbacks has less significant (even if just in pure dollar terms) than the claim that you've broken the fundamental threat model related to the largest crypto-asset system that currently has a market cap (as of this moment) of more than half a billion USD
What is your definition of a reputable source then?
You have four different people saying the same thing and still you ask for a 'source'.