Pretty sure the Dispel Magic of Carosmyr still works. It doesn't seem to be connected to doing damage, merely hitting. Which makes sense; the idea is the power in blade burns away hostile spells with a touch. It doesn't have to do with drawing blood.

But spell immunity abjuration makes you immune to dispel magic spell as long as you cast it last (as it prevents you from casting any further protection spells).

I would call it a clever exploitation of game mechanics. If it were a real D&D game, no DM would ever let a Wish work like that over and over.

Yet, its not a real D&D game. In a real D&D game no sane GM would let you play a son of god to begin with.

I wasn't referring to cheese as Wish spells. I was referring to your comments about blowing all your spells and then resting after every fight. That is cheese, IMO.

Yet thats what the wish spell lets you do. Without resting.

Honestly, I would agree that's poor programming.

Its not poor programming, when its working as intended. The wish spell works as well as you're able to form your request. If you word it right, you'll get anything you wish. The wording of the resting wish is formed in a way, that you're considered to have rested a full night and regained your spells.

Which, I should not have to explain to you, is not in the spirit of the game.

The spirit of the game is that you're a offspring of a god with almost limitless potential. Gods can cast wish spells at will, why would it not be in the spirit of the game to not allow you to waste memorized slots to cast wish spells?

You're right that the silver sword is also not working as intended when it kills creatures that cannot be harmed by it, but I see that as several magnitudes lower on the "cheese" scale than what I would call the wish exploit.

Yet again, a weapon that does not work as intended (silver swords are only able to instantly kill you in the astral plane, which is where most of the githzerai hunt) and a spell that works as intended (but it just insanely powerful to begin with). I don't see how a 9th level spell is more cheese than a buggy item done with lazy coding.