Quote from me1969:
Why a shame? This kind of flipping - or let's say bluffing - sucks liquidity and that's not good for the Eurex and a lot of market participants.
Hmm, are you sure it sucks liquidity out? Even if it does, don't you reckon the way to fix it is to bring in 1/2 cent increments, not constrain traders with regulation?
Dunno, you might be right.. but regulators such as Bafin can be a bit trigger-happy.