Odd question. Which IS faction to include Periphery factions would likely condone or turn a blind eye to poaching?
Whatever you want to do to your eggs is up to you . . .(https://www.simplyrecipes.com/wp-content/uploads/2003/07/easy-poached-eggs-600.jpg)
A pox upon ye! There is only one way to prepare your eggs...
The Rim Collection and Able's Aces probably take a dim view of unauthorized visitors to and poaching of the megafauna on Hunter's Paradise. The only big game hunters allowed there must certainly pay for the privilege.
http://www.sarna.net/wiki/Hunter%27s_Paradise
I think that they're probably upset by this because unauthorised visitors bring their own weapons on the hunt - and most of the creatures deemed worthy of hunting on Hunter's Paradise require BattleMechs to hunt them with fair odds of success.
Except the world got Blaked.
Don't get caught in the Dominion poaching Ghost Bears.
I suspect it might be easier to define nations that do care about poaching instead of those who don't.
. . . and then who answers the Trial?