Well, at least in my country, cryptocurrencies are still a loophole when it comes to tax, regulations aren't thought out and cryptocurrencies aren't taxable. Honestly, the amount most of the bounty hunters earn aren't enough to tax, I mean, when it's taxed it would be so low that every user here would be forced to use multis for bounty hunting, otherwise, you can't make a living from it.
So taking bounty hunting as a freelance off-record work. Let's be honest here, some of us have switched to full-time bounty hunting from our day jobs, to be a freelance taxpayer, you need a tax registration certificate, how many of us have it here?
In my country where Government doesnt take care of their own responsibility on citizens of the country, the masses dont really care about lGovernment anymore but everyone is struggling to survive, people doesnt care about tax payment even on their physical business not to talk of online business. The government had failed us here