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.
![Wink](https://bitcointalk.org/Smileys/default/wink.gif)
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.