It's idiotic game design to create items such that they're used exclusively by 1 town and 1 scum. We all claim what we need, we look at the counter-claims, we lynch amongst those pools, game over. It isn't a game at that point.
This is such a simplistic straw man. (1) it’s a closed setup, so we can’t game it in this way because we don’t know our theory to be correct (case in point, your current argument). (2) Like all claiming-related plans there are lots of ways for scum to manipulate it by lying about what they need. The setup is only solvable if scum admits to needing the same item as someone else.
Now let me defend my claim to why it’s elegant. The game creates a mini game about giving items to other people. If only town needed the items town had, THAT would be solvable— everyone would just claim what they needed and people would give it to them. If scum and town both need items town has, then there’s risk in every decision: risk in whether to share info about what you have/need, risks in whether to give those things out. And there’s trade offs for scum too— scum mail-mi can list the rope, inviting the possibility of a 1 v 1 but also the chance that he gets the rope that he needs to get whatever scum power it grants, or he can not list it and give up the power but avoid that situation.
All that said, I want to be careful not to fall in that trap where in the process of trying to defend a position I end up clinging much more strongly to it than it deserves. So, to be clear, it’s definitely possible Mail-mi and skip are both town. And lynching one and them flipping town should not lead us to automatically lynch the other one the next day— though I don’t actually think anyone’s advocated that explicitly. BUT I think lynching one of them gives us a better chance of hitting scum then lynching outside them.
And, finally, I think my vote for you was a bit overzealous. I stand by the basic premise— that Galz’s reaction was the only sensible one for a scum buddy if we are in a 1 v 1 situation. But I’ve been persuaded that the likelihood that we are in that situation is lower than I thought.