In the POS(PROOF OF STACK) featured coin, when a block is mined, and submitted to the client, it must be signed with your public key, while bitcoin/litecoin don't have to. That' why novacoin p2pool delete "-address" option.  Because when you specify an address, it's just a hash160(pubkey), not your publish key, yacoind will throw an error "sign block failed".

In the lastest version of yacoin-p2pool, no matter what the "fee" is, the host user of p2pool will be paid at least 0.01, just for the pubkey, without this, you can never sign a block.

So, if you want to specify an individual address, use the worker-name-as-address mode.
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I see, it's created a new account in the yacoind server node's wallet called p2pool and added a payout address to that for the fees.

Lets hope a few more people put up some nodes with the updated code, it' a bit lonely on the YAC  p2pool net atm.