Face the reality!
Ppl who gamble are desperate idiots, or at least guys tired from complexity of life.
They really do not want to read texts from scientists that would make sense.
If people would like to read something about casinos, that make sense, it would have been something like: "Do not gamble, you a$$****. There is no possibility to win in casino/sportsbook unless you are the type of player that the casino will kick out and I do not want you under my affiliate account as well.".
So your target are desperate people that want to lose money or they want to spend it for illusion of world, where they can have money without work. Therefore it makes sense that the texts and banners are simply stupid. It is impossible to write an amazing article about casino bonus with 75x rollover that can not be used at BJ Switch or how Mr. Jones won his 3M Jackpot and now is (alone after his wife left him with Afro_american D-league player that made her more pleasure than his money and how is daughter is now on heroin) very happy.
If you talk to God, you are praying; If God talks to you, you have schizophrenia.