Sincerely speaking I have seen lots of these social media influencers doing affiliate marketing whereby they post their ref code or link together in their post, this doesn't mean that they are solely reliable for those who are signing up for the website. There is different between a representative and affiliate marketer, this person gets his code or link share but due to how they are influencial people would go signed up and start making use of the website this doesn't mean that if anyone Lose their money the influencer will be hold responsible.
I can also reference other case that relates with Elon musk tweeting about some memecoin, he doesn't directly asked you to go put your live saving in those projects, hence if the coin dump you won't hold him responsible for the lost but he tweeted about the coin that's was why many people who bought dogecoin when tweeted lose lot of money with the mindset that the coin would eventually gets to 1$ but it fails and lot of people lost money.
An example which is relatable is this; You wear a signature for a casino, you promote their services and new users get to know about the platform through your advertisements. Don’t you think you have a moral obligation to use your signature space wisely and promote projects which you believe are legitimate and align with your values?