I guess it isn't impossible, perhaps they do that by default with all coin Tx to create a pool for HF trades or such, but it's all supposition.
But, for the benefit of other HOdlers, did they state whether they are on the latest client/blockchain?
Only asking because others may wish to send/receive HOdl via Unnamed.Exchange.
They didn't say, they just put the coins into my exchange account. So I assume they received the transaction, which means they must be on the main chain now whether they were or not at first.
Also, I'd like to add that my transaction to Coinexchange.io showed up immediately in my exchange account. They require 200 confirmations, but at least it's there.