Affiliate links mostly work for the influencers and the content creators. Myself got a request to share affiliate link, watching my wager. Based on that i concluded that the whale gamblers will receive more affiliate request.
This is true. For just usual users, getting benefits from affiliate links seems hard and a big challenge.
For affiliate commissions to feel to the very extent of it, being popular is really one of the pre-requisites.
That's why it's only a few users there who really putting effort in getting the benefits affiliate commissions.
Hence why, one needs skill if one wants to profit from affiliate links. and it's not easy, one needs skill and medium to share his affiliate link. so what you say is true, very few users actually benefit from affiliate commissions. except, you have media resources to channel affiliates for you to spread so that there are lots of beginners or gamblers who register from your affiliates.
For example, you can share it with gambling communities, plus, promote the casino at the same time. it could also be if you have rich friends who like to gamble, then register them from your affiliate. or if you are a content creator, especially gambling. that way, the affiliate link that you share has the potential to generate a lot of profit and will increase additional income.