Oh, folkes.
That's so weird to tell about BCN "pre mine" and BMR no-premine as its advantage. You know, people who will find out BMR much more later will say that you premined BMR. Just because they will be late for low diffs.
And they will think it's unfair distribution, because you have coins and they don't. As you do it now.

People will start to do their own "fair" forkes. As a result we will have hundreds useless coins as Bitcoin's ones. It's so stupid and irritating.

Btw I offer not to call BCN situation as "premine", because it's significantly other situation.