I don't really see the benefit in creating an investor risk adjustment option. The site already has a fairly large bankroll, do we really need to accommodate larger bets? Why create a confusing and hard to implement (from my understanding) system that isn't really needed?

[...] there are a couple scenarios in which a higher "leverage" on Just-Dice is advantageous over a higher investment amount. There are more, but three spring to mind:

• A lack of perfect trust in dooglus, dooglus' computer skills, etc
• A lack of bitcoins
• Having taken out a loan to invest in Just-Dice (not that I condone this one)

Upon rereading I think maybe what you are suggesting by "leverage" would be raising your individual kelly percent above 1%. In other words, saying you're willing to bet bigger than the optimal amount  (because you like to gamble with a positive edge). I can sorta see some validity to that.