Yeah, there is nothing to lose except for the time and internet resources you spend on the site, or do you not consider this valuable too? It is commonly said that time is one of the most valuable assets a man can possess, he who lost time on meaningless things is same as him who lost money, or even worst because lost money can be recovered back, but lost time can never be recovered.
Anyways, just me thinking aloud, and speaking about RP, I've never kept any of mine, I always spent all on lottery tickets which I've never won except for way back 2018.
Time is the most important thing, sometimes even more important than money itself. To be hones, don't waste time as it is irreplaceable. Once we spent time on meaningful or useless, it cannot be recovered. This makes it one of the most valuable resources we have.
Spending time on a site like FreeBitco is just the wait of time and money, We should ideally spend time on other more trusted gambling sites that may provide some form of meaningful return whether financial or personal enjoyment.