1. I don't think it's a good idea to add psok limits to items, especially Eternals which currently don't have a psok limit. It's an unhealthy system that incentivizes players to do less.

Dark boss has been widely available for 2 years, and the amount of players who replaced gollux is still nearly nonexistent. Eternals are seen as unnecessary by most players except a dozen or so of the biggest whales. Those who wanted to icog their bis item are less interested since resetting scissor count involves innocence scrolls that remove the scrolls that cost them 150-300k nx and 3-6b in mesos per slot.

The "break the economy" argument doesn't make sense in GMS. People who use expensive items like dark boss and eternal want to make it as good as they can within their means, then keep it until they quit or a new set comes out, which happens already without scissor count. All of GMS reg is about 15% of the largest KMS world and most players started years or even a decade+ ago, so item sales are very uncommon unless players are quitting.

Despite Arcane items being 7 years old, the supply of good examples for sale is very low. 5 line examples can take weeks to find in auction and 6 liners come up only a few times a year. Meanwhile despite the scissor system in KMS you can find these within a few hours/days. It doesn't make people more inclined to make their own item since players can just sell low scissor count items with the potentials at a reduced price for buyers to innocence and re-scroll + re-starforce, none of which costs NX.

A lot of players wanted to transfer their items around different classes and even monthly for black mage. Adding scissor limit just makes people think twice about icogs and not trade between their characters... Scissor limit just doesn't make sense for players or profits.

2. With the change for boss items to become psokable, psoks should be applicable to Sweetwater items. There is no better alternative to Sweetwater Katara, and previously best in slot sweetwater that's been replaced could find uses other than filling up inventory space.