edit: my assumption that the client will leave the orders if the server canāt be reached is not valid. I will only āredactā but not delete this post, though, because of the informative replies by @creon and @woolly_sammoth.
This is a good reason for liquidity providers to think twice about the offered compensation.
Providing liquidity in a different trading pair than NBT/USD needs to be better compensated for some reasons - this here is another.
In case you offer EUR/NBT at ccedk itās not that bad as USD/EUR is quite stable compared to BTC/USD.
In case you offer liquidity in BTC/NBT at bitcoin.co.id and donāt cancel your orders, because you donāt know of the server outage or have no immediate access to you account, you might provide good deals in case of fluctuating BTC priceā¦