This category system is fucking stupid in my opinion. Tax people who've been in the industry for so long but make it so vague that people wouldn't have the slightest clue what it means to be a category three trader in Belgium? What an utter joke.
The first thing you should make sure, when proposing a new ordinance or a law is to make sure that no one misconstrues it, so as to not make people liable for violating it get away under vague grounds. Not that taxing people for crypto usage is a massive movement in the first place, but it just grinds my gears that they propose such a particular law under super vague terms. It's frustrating honestly.
I know this same system from when I played online poker (about 12 years ago) and it is the reason why I never got involved before.
I was interested with BTC at $200 and of course I regret not getting involved. But I always knew that eventually this would happen. I just expected it sooner.
I'm also self employed (health care) and the fear of all of us is getting a visit from a tax inspector. We're supposed to keep all files regarding tax returns of the last 3 years, and if you get a visit of them they are guaranteed to find something to make you pay. And we are already one of the most heavily taxed countries on earth.
Getting involved with crypto is probably like sending an open invitation (through the bank, who will flag us) to have a tax inspector come over and rob us for every euro they can.
I just don't see how they can verify exactly which cryptos we hold, because we take them off of the exchange into cold storage. My goal was always to keep all profits out of the banking sector. Because it will inevitably lead to confiscation.