So, if another token can get a lot of utility ...they might get the same success as the Top tokens. The tokens that are not making it.... are the one with a single use.
There are millions of registered users in freebitco but most of these numbers are not legit but they are just bots and multi accounts only to abuse the faucet. I think the reason why fun token can be used on other casinos is because it is an independent token. It was not owned by a specific gambling company unlike to bfg and owl tokens which was owned by betfury and owlgames.