I edited one of my above posts to articulate the problem with inflation...aka "tail reward"
It (0 inflation) has further benefit due to the fact that Bitcoin mining profit trends towards zero, but with a deflationary system with no inflation involved, there is still incentive to mine it anyway due mining acting as futures market with a time opportunity cost that allows for forward profits
The amount of inflation you can slop onto a system before it compromises my above statement is far too arbitrary and unknown, to the point where it should just be a taboo subject in the first place changing it to anything but zero. Anyone arguing for inflation should be looked upon with great suspicion (even though I've made the mistake of considering it possibly useful in the past)