Don't go under 1000 pink keys or you might get a pink key as a drop!!!
If all players just followed this players as a total would get twice as many pink boxes and there would be no shortage of pink boxes...
Just collect 1.5M or 3M at other events and buy 1000 or 2000 pink keys when this type of event starts.

Non macro players would find twice as many pink boxed = Twice as many reward from those.
Non macro players would open twice as many pink boxed because everybody else also finds twice as many pink boxes.
Macro useres are like now only limmed by how much pero have to spend on pink keys so they would not benift from this.
Even if there was twice as many pink boxes to open macro-users would not have more money to spend on keys anyway.