I know sometimes people get caught up on something they think is a good idea when it comes to make money. However they also dont always think of the ethics behind what they do. I hate to say this but this is one of those things that is very close to unethical.
I worked for a billboard company once and my manager was fired for this very thing and the company ultimately went under because of this. Its a long story but in the end he was getting paid more for each space that he sold for the company but was giving the customers kickback. The thing is that the company wanted a “full pay” customer.
Well I guess let me put it this way. The casino is paying you the $$ because they expect to get paid so much per player and pay you with that. The problem with you giving signups money is that they are just using $50 free no purchase required while the casino is actually giving you $75. So essentially they are paying you $75 to get them a bonus player. Does that make sense?
Edited: oops I see this was covered…