Having own coin on casino, and the coin can be used to play games, gamble, bet, etc. It's not too bad because the coin will have good demands at start, and total liquidity of casino will increase considerably, I am sure about this.
I did hear something about it just today while reading on the telegram chat but it wasnt taken seriously.
But with other casino sites implementing a token pay to play scenario just like betking.io has done I cant see why it wouldnt be such a bad idea.
If the Stake team really want to do this, they will choose appropriate time to launch Stake coin, but not now.
This is a good idea but for now, the admins and developer cannot supervise or make a project like this right now.
I guess they might do it (if they have plans for it) in 2021, years from now.
The market crypto prices is still low, And there are too many ICO's had been created. Its always on the final decision of the admin.