Buffs already create a problem of encouraging hoarding of cards. With standard its not that bad because it is generally a bad idea to dust anything non 3rd copy before standard cycle ends but for wild its awful. You are basically creating a motivation to never dust anything because it can be buffed later.
Exactly. Less dust in the system means more money to packs.
Not proportionately, but still.
It would actually be against my individual interest, but if that meant some wee bit of serious attention to Wild, i'd take it...