It follows the theory of 'Eye for an eye'. I believe you have wronged the system 'this' way so I will wrong the system 'that' way.
Of course, the saying goes, 'An eye for an eye will make everyone go blind.' If your only solution you can find to something you find destructive is to take another destructive path, you aren't helping the cause at all, and you can't try and take a community helping high road out of that fact. It's not helping anyone save for a few people who are cheating the system.
The difference to me will always be ToS, regardless of if Ankama sucks at enforcing it, the ToS is the difference on what is right and wrong in a game space that is not owned by any of us, but a team of developers under the parent company, Ankama. If they wanted merit camping to be an illicit activity, they could make it a violation of the ToS, or put rules into the game to prevent it. Or better yet, just make a system that doesn't promote it.
Alternatively, if they didn't want merit collection to be such a godawful task that people have to resort to becoming dubious they could do things like, create an alt+f4 delay so scummy players can't just quit the server when they see you. Create better incentives for entry level pvp so that more people are willing to take part in it in the first place and merit wasn't so scarce. Create better incentives for team play, which drives out the 1v1 meta which will never be anything worth having.
You can argue about how you're saving the community, but it's not yours to save. It's Ankama's game and it's really up to their development team what they want to do with it. I can guarantee you the game has lost 1,000 times the players camping ever cost to any of the thousands of other issues the game has. So if Ankama is breaking their own game and driving players away, does that mean you should troll Ankama because it's fun and makes a few players you like stick around?
I can prove this point by turning Wakfu into a microcasm of the MMOspace as a whole. Of that huge MMO space there's a VERRRRRY tiny % of players crazy enough to play this practically indie, very much still in development game in the first place, so few in fact that in a short period of time everyone is essentially modestly aware of everyone else and the game itself is nothing but cliques. Ankama is the merit camping, constantly giving us unpleasant experiences through unwanted or poorly implemented changes, not handling problems in a timely fashion and often lacking the capacity or the ability to punish people who step outside the rules. So does that mean the best way to solve this problem is to then ruin the fun of the small % of players who do enjoy Wakfu by completely breaking the game? Ruin the economy, ruin nations, ruin the community built spaces, care to the wind. Is it the way to go?
This is a perfect microcasm because it really happened. A small % of the player base significantly abused a duping exploit to essentially ruin the server economy, entire spaces of the game, entire nations and in a very large way the game itself for Nox population. I don't see any difference in supporting merit farmers than supporting those dupers. You are hiding behind the guise of community support and shaming a sanctioned, but unsavory activity in one hand, while simultaneously saying it's perfectly fine to perform an unsactioned and equally unsavory activity in the other.
There is no justice in that,