I think a signature campaign will be nice for spreading words about kingdice. However, it may not fit into the budget of the admins. They can run a small campaign with lower payouts too as people will try to get every single penny for every msg they write
If one wants to succeed in gambling business they must be ready to spend money for marketing their product with good promotions. Just look at bitsler how admin made that site so popular within a year. If no good promotions then the site may slowly lose all the players and if no players then no use of having a gambling site.