I agree with what @Cling18 said because sooner or later, social media can ban advertising about gambling or limit those ads. This all depends on the policy between social media and the government. But if the promotion was done on a crypto forum, I think it could hit the mark more because casinos use crypto for payments and bets. Every casino will try to promote their casino on many websites and if they can promote in this forum then this will be even better.
For us to be sure. We need to read their policy related to advertisement if what kind of advertisement they allow. To be honest I never saw a gambling platform being advertise on tiktok but if I am not mistaken there are a few gambling apps that I saw on facebook already.
The said apps are only fiat based and don't accept cryptocurrencies but on tiktok before, there are influencers that promotes cryptos and nft's. We can contact the person in charge for this, for more information. At the meantime we are confident that our own forum bitcointalk allows gambling advertisements. Many people visits this forum every single day so we are sure that we can get a lot of traffic.