Hellmuth "liked" this tweet, but hasn't responded.

The reason I ask is that none of them have disclosed this in any of their promotions on social media. Daniel even has recently posted a video in which he talks about how innovative "they" (PokerCentral) are and how "they" are great for the game.

This reminds me a bit of the CSGOlotto scandal in which two huge YouTubers made a bunch of videos about their gambling site for kids, but pretended like they had just stumbled upon it.

The FTC has pretty clear rules on this and has recently fined companies for promoting through YouTube and Instagram personalities without full disclosures.

I think pretending not to own the company you're promoting is even slimier than sneaking ads into your content.