Ok i understand what you are referring to, but you shouldn't refer to these as "legel hacks" or "gm hacks" regardless of semantics, because that's not what they are, and calling it "hacks" can lead to bad communication and confusion in the community.
What you are getting at is "the breaking of traditional micro-transaction models" by selling services or items that offer "power" that cannot be naturally obtained by standard in game means or hard labor, such as a "upgrade your seals" raffle or promotional spender, where non-spenders will never be able to obtain these, thus throwing the balance of the game off.
From a personal standpoint I'm against these type of services, unless those services are being made available to be obtainable naturally at a later date, in which then it becomes a matter of paying to get them first.
There will always be premium items that cannot be obtained naturally, and those are ok, but services that offer "power" should never be sold, unless said services can be obtained through exceptional hard work.
In LC's particular instance, this has been a struggle and the team has tried to work to bridge that gap, recognizing that it is the case, and the effect of that has been and is still being gradually turned around, even if slowly, providing the developers continue to work with us in that endeavor.
The best way to address those issues, is to single out a particular issue, and find a system in game that can help to alleviate some of the weight that throws it off scale.
However, this is not an "AG&E business model", it is used and practiced by virtually every free-2-play mmo publisher & developer in the industry because premium services on microtrans sell, and manya subscription based models are slowly turning towards it