I guess that one of the takeaways is that Belgian systems and services are significantly more likely than average to have vulnerabilities, so you should stay away from them.
Not sure why they author wants to tell the world xxx org had a business logic vulnerability and I found it. The rest was OK, but why the need to talk about that type of vulnerability? It's a one-off. Also, making the existence of it public might draw others to their site looking for more.
Laws on the books rarely change, plenty of places have silly leftovers like laws about where you can park your horse.
Stay anonymous, look up extradition laws to be extra-safe.
And I was thinking it was a disease.
Please don't help this country. It needs to fall apart.