It was 25% but no one was interested so it was increased to 50%.  As far as I am aware only one of the mods has gone for it.

Rimbit lost all its top community members when it became apparent that the Dev, Mark Karlsson, was engaging in inappropriate practises.  It looks like he cannot account for the $200,000 -$250,000 he raised through several sources.  Now IGG has closed this looks to me to be a last desperate attempt to keep an income stream flowing into his wallet.  I hope I am wrong as Rimbit is a currency with high potential but it needs new people to take it forward now.