I've already addressed this upthread, having huge number of dormant accounts doesn't bring any value. We need active users who bother to move their coins within limited timeframe.
still I have for example multiple paperwallets on different locations for security reasons. Some just have everything in one wallet already and don't care about security. Does that mean, that he is more active, because he is not into safety?
So why we should suffer and merge the coins and do all the work of separation again? Sorry, not nice...
As I said, you can still make registration with public keys...
If you keep your bitcoins in multiple wallets (like many security aware people do), you don't have to merge them, you can claim for each individual address. Choose what is more convenient for you.
