We can not really call it a scam as they are still paying without a lot of issues. They are in a way scamming the users by not crediting the WOF spins based on the premium membership (and still advertising it in their free promotional emails) but I always associate a scam with not paying its costumers.
We see that they are paying, but then again they are still advertising something that doesn't work or doesn't exist at all... and that is some kind of scam. And the problem is that it has been going on for too long...
FUN is already selling for 2 satoshis on the platform. What is going to happen once FUN starts selling for less than 1 satoshi per unit? It shouldn't take long until we reach to that point.
I guess it will sound like a joke, but it's not... nothing will happen, they will just continue to work like nothing happened.

They have some red flags and the people who continue to use the site know this, so if one day the site disappears with people's money, I think these people should not come to this thread to complain. Because all the signs that this will eventually happen are there. The site does not have an active representative here on the forum, so even if someone was robbed it would be useless to come and create a thread in the scam accusation section.