Who would want to buy NBT for ETH without a single place to get the ETH back?
On the other hand NBT can be traded for BTC and the BTC/ETH markets are very liquid.
I’ll sketch a draft for an ETH/NBT operation later - just in case we might get ETH/NBT listed.
Maybe Poloniex doesn’t want to list ETH/NBT to protect the ETH/USDT pairs?
Then again, trade volume is trade volume and fees are fees!
We’d even do them a favour with a sell side only operation: traders need to go trough NBT/BTC and BTC/ETH to get ETH back 
edit:
I’ve thought a bit longer about ETH and the start with a sell side custodian.
The Ethereum wallet is so much different from what I already know that I didn’t feel comfortable using it to handle funds not to mention handling Nu funds in multsig.
What about this:
next to a sell side ETH/NBT operation that produces ETH, we might operate an ETH/BTC sell side operation to produce BTC. Those two operations can be handled from the same account, I suppose.
Does anybody know? I mean the proceeds from the ETH/NBT pair are not on order. Does that mean they are available for another NuBot using the same credentials, but a different pair?
@desrever, @woolly_sammoth, does NuBot support the ETH/BTC pair?
That would be a prerequisite for this plan.
If it works this way, those BTC can be withdrawn to FLOT multisig and counted as reserve.
As long as there’s no dual side ALP at the ETH/NBT pair, traders will trade on the NBT/BTC pair, if they finally want to get their ETH back.
Both sell side operations are on the “maker” side and cost only 0.15% fees. At an offset of 0.4% this could work.
What do you think?