After all, it's attracted its share of scammers and drug dealers since bursting onto the scene six years ago.

That's why the 39-year-old Montrealer buys coffee and fast food with a Bitcoin debit card, and then drives around at night giving the goods to homeless people. He films the whole thing, and uploads it to YouTube. These videos have each racked up at least a few thousand views, and others—like his videos exposing police misconduct to promote a dash cam distributor—have garnered millions.

This apparent altruism is in stark contrast to Guerbuez's past life as a brazen Facebook scammer; a marketer of videos reportedly depicting the homeless being assaulted to a white power punk soundtrack, which he now claims was a "hoax"; and a self-admitted member of the neo-Nazi group Heritage Front in the 1990s. Guerbuez denies any current involvement with the white power movement.