I am also doing same most of time using these RP for bonuses from time to time because no other use of these RP and 100K need nearly 9 to 10 years for redeem which is really hilarious for any single user without any referral and gambling habit on this faucet.
I'm sure this is intended to be like that, otherwise anyone would just bleed the faucet dry after few months.
This gives you incentive to play hi-lo and to bring in new people into the system.
Also, if you claim the faucet regularily, like 15+ times a day every day, you can buy RP bonus which increases your RP gain a lot.
Looking at how much gambling taking place nowadays, we could say that they were once a faucet website only known for their faucet but nowadays they are known for their gambling very well too, look at all the money that goes into dice (well I call it dice but in reality I think it is called hi/lo?) and their betting, in fact on their betting side you can see how much is gambled as well and I think that is not even close to dice neither, yet it is still a lot.
So, I agree that they were once famous for their faucet and that got the attention of many people but after that there was a period of time when they got more and more famous with their own gambling as well. Right now they are known for dice, betting, lottery and lambo thing all together and makes up for many of the users.