I believe that the reason why people love watching gambling streamers is because they often make high rolls and bets and it's usually fun when you see someone making high bets just to see how they end up, whether they win something big or end up losing all the balance, it's just the experience that is fun and I say this because I also enjoy watching gambling videos or streams sometimes just to see the gameplay with the amount being used as the base bet.

However, one should only keep it until fun and shouldn't get influenced by the results or anything because most of the times, these streamers are not using real money or their own money, so even if they lose $100k a day, it wouldn't cause them anything because the money is sponsored by the casino they are using as it's promotion for them, but if someone gets influenced by their gameplay and tries to imitate what they do, it might cause them severe financial loss.