Actually, it turns out that, yes, players need to be shielded from themselves when they abuse mechanics to get an unfair advantage. This is why exploits are actually fixed, same as bugs.
It's reasonable to assume that the game designer balanced the challenges and the rewards in the game for the player to have a sense of accomplishment proportionate to their skill and effort. Exploits disrupt that balance and players like you have a hard time resisting abusing exploits.
So, me happy about forge some 3-4k weapons to sell is abusing the system? m'kay.... Break down crap and turn it into something slightly better is good enough for me. Majority of income I get from selling loot after battles, and ransom prisoners. But if people feel like exploit mechanics to have fun, it doesn't ruin the game for me. Players that scream for fix it, seems to be a bunch of people without any self control what so ever.