Just like you, and I think this is a natural thing because a business would expect returns to cover all their business expenses and to keep them a live, I decided to stop to activate the RP Bonus, because according to my calculations will only get good returns if able to spin more than 20x that means it will reduce our sleep time so it really doesn't make sense.
Currently, I Just do dice and betting in sport event.

Why will Freebitco.in go "RIP" over a simple adjustment in the probability that you will win a specific prize? Casinos make adjustments like this all the time. Let's take Stake.com as an example... they had VIP hosts for all Platinum I players and higher ...but the amount of people that reached Platinum I increased so fast.. that they decided to stop offering VIP hosts to Platinum I players... and only for Platinum II players and higher. (I think they changed it again ...now it is Platinum III and higher)

Casinos have to constantly balance the expenses to be less than their income... other wise they have to close their doors. (They are doing this to make a profit... not to function as a charity)