Does anyone here use BTer?
I've used them loads and never had an issue, but today I sent them a large amount of DRK (over 12 hours ago) and the transaction is still stuck.
Blockchain Explorer says "Not yet redeemed."

Is it possible BTer is not synching on purpose in some attempt to control order book?

Another question this raises is that if a sent transaction is not yet redeemed, could there be something implemented to pull back, i.e. cancel the transaction from the sender's end?
Because at the moment it seems like in cases like this, we're at the mercy of the exchange.

I suppose this could be a moot point with instant x though.....

  

What about a 'banding' model where payments within certain bands attract a certain level of fees?

That way the fee can vary according to transaction amount, yet not give away the exact amount that has been handled.