Potential securities and gains:
 - Historic through-put privacy (Not anonymity. Pure eradication of distribution-paths.)
 - Smaller block-chain size (Size reductions beyond 99% potentially, without loss of holdings or funky compression.)
 - Faster block-chain downloads (Due to smaller size, and an additional method of structure.)
 - Faster block-chain exploring and balance-checking. (Again, due to the major redundant reductions.)
 - Reduced block-sizes from the dust-killer. (Allows for more tx's to be delivered in less space.)
 - Less over-mined blocks, within a time-frame, which leads to abnormal and undesired forking and ultra-low diff-adjustments that hurt the network.
 - Less stale-blocks, ensuring that tx's are never stalled due to an unrealistic and unjustified ultra-high diff-adjustment that hurt the network.
 - Less branching and unfair rejections from slow and distant isolation of network participants.
 - Fast-block coins, without the headaches normally associated with fast-blocks, and all the advantages of fast-blocks. (Shorter delivery, and less potential invalid transactions or double-spends.)
 - Spends that MUST be collected, or they get returned to the sender. (Spender security)
 - Proof-of-purchase, with a "must accept or return" and "return to sender", tag. (For buyers and sellers)