Not illigal
Expensive bug bounty
illegal *
And if there's a bug in the code that allows hackers/thieves the ability to go against the consensus rules of the chain, that would be considered illegal creation of coins as they did not follow the rules laid out in the code.
They are neither hackers nor thieves, nor was the creation of coins illegal, in fact it was done with accordance to the consensus rules of the chain, otherwise it would be impossible to do.
You can't have decentralized pros without its cons.
So if I hack you using some Windows flaw, hey, too bad, it was done with the consensus of the code cuz otherwise it wouldnt have been possible.
Brilliant.