LOL McAfee is a pay-to-shill kind of person, as long as you pay him good money (or coins), he'll advertise any coin (shitcoin or not). Good for Waves and their new platform, they'll definitely get some traffic with McAfee as the main guy promoting it (like it or not, he can reach the masses).
Regardless, this is no reason to buy Waves, just wanted to point that out in case the newbies think this is gonna make the altcoin skyrocket in value.
Actually he's shilling here a business, not a coin. And I expect indeed the business get more traffic because of this.
So the shilling for Waves coin is indirect and it's only because of the name of the business.
However, Waves will gain after all, since from what I've read this betting business is made on Waves blockchain.
Some may consider this worthy for investment, some not. I am disappointed indeed on how much the Waves price has fallen, I am (bag)holding a tiny amount.