The only thing so far I dont like about the proposal is what West mentioned about 'double dipping'. I never did like that possibility.
If you have to stake BBP to earn PoDC rewards, it is not "double-dipping" for free. I'd argue that GridCoin users are the ideal crossover because they understand crypto already. Blacklisting the team gives them little incentive to join BiblePay.
It seems like a two-edged sword for me, if they can join they will have to buy BBP to stake, but on the other side if they add up a lot of RAC, the profitability of PoDC mining will fall, and some miners could leave and sell their stake...
In the final balance I think that allowing all teams will be better than keeping blacklists, but I may be wrong in my appreciation.