It's not about having everything unlocked, but knowing if the system works. Assume that you had everthing unlocked prior to WFA, then you'd have roughly 50 new things to unlock. This would make the chance to unlock something of those really small, so you might play 100 games without unlocking something (and at that point people usually go to the forums and complain it's not working). If you unlocked more, the chances are even smaller. I think I calculated it once that for the last few items you need roughly 500 games each.
Duplicates allow people to see the system is working (or well.. would've had it been known earlier that duplicates are fine) and makes it easier to add features for them later on.
So kind of curious is the system like this?
Assume that only possible drops are bulletin A,B,C,D, and E
50% you get nothing
10% you get bulletin A
10% you get bulletin B
10% you get bulletin C
10% you get bulletin D
10% you get bulletin E
so if you have bulletin A,B,C,D chance of you are going to receive another drop is 10% if duplicate system does not exist. However, if you have duplicate system then chance of receiving drop will be 50%.
Is this your explanation of our current system?
I thought it was more like
you have x% chance of winning drop
and each drop has chance of being bulletin, commander, skins, faceplates, and the likelyhood of epic and rare is lower than uncommon and common.
so it will be more like
chance of winning a drop=>chance of getting what kind of drops (are you gonna get winter skin, are you gonna get joint operation commander, etc)
so in this case not allowing duplicate will not lower your chance of getting drops.
I want to know what kind of system we are in.