Okay - we're nearly there - 5 million required for threshold validity.

https://nutocracy.herokuapp.com/arguments/that-block-rewards-should-remain-unchanged-in-amount-but-required-to-be-hodled-for-a-period-of-1-year-https-www-reddit-com-r-hodl-comments-4qpx9g

I've been working on the code required today and am testing it at the moment. Should be able to put this into effect with some rapidity.