This news comes to us from Blizzard itself:
While we at Blizzard were surprised by this conclusion and do not share the same opinion, we have decided to comply with their interpretation of Belgian law. As a result, we have no choice but to implement measures that will prevent Overwatch and Heroes of the Storm players located in Belgium from purchasing in-game loot boxes and loot chests with real money and gems.
No matter what, we want to make sure that our players around the world have the best entertainment experience possible. While players in Belgium will no longer be able to purchase paid loot boxes in Overwatch and loot chests in Heroes of the Storm, they’ll still be able to earn them by playing the games, and they’ll still have access to all in-game content.
They also close things off by saying they’re open to being contacted by the Belgian Gaming Commission if they ever feel like changing their minds. Kinda passive-aggressive like.
The topic’s been closed before anyone could comment on it, so it’s hard to get a read on the community on the subject, but I, for one, am not exactly heartbroken. Anyone who knows me knows I was never a fan of loot boxes to begin with, so all I have to say is good riddance.