I kind of understand some of what she desires. Luke isn't always going to be in the same party, and if there is ever a monster that his sleep magic doesn't work on, they will need that experience to grow stronger. But the issue with worlds that have a level up system is that you can also become stronger by simply killing some creatures. Now, manga and manhua worlds like this definitely lean more into the idea of "having a higher level is only an advantage that strengthens you, not makes you invincible," but such an experience shouldn't be forcibly applied by personal views. It should be an event that takes place naturally, or at least be artificially made by someone with real experience.

You know, this actually is a pretty smart move as he now has the reason and means to question everyone that enters and leaves the city, including the people that try to come to aid the merchant. (and considering how easily paranoid the villagers are, he can convince them that the merchant is working with those bandits)

One thing I question about calling them coins is, "When you have a coin you have an EXTRA life." So it would only make sense for it not to be called coins but Lives.

Oh ho, so there is now a non-killing option to gain lives too. Like reaching a specific achievement gives you rewards behind it. (Would've been real funny if the assassin protecting the old fa** had Love/Life +4 above their head. Or gag a male character with it because we know these manhua love to make gay men that are twice as buff who are overly grapey)

The only reason I consider that to be a smart choice is that he's planning to save scum for more techniques and items he could bring into his next life.
The only reason I consider that to be a stupid choice is that he had 2 free slots, not needing to save over the one he already has (but the only pass is that he likely doesn't know he can save over existing slots).

...I do remember the guy saying "girlfriend" only to be confused a few chapters later by her calling him "husband"

You know... I consider it lucky that King was even able to see the panties, considering the fight is practically happening at high enough speeds to end up in other cities, away from the original location.

"And so the King of the Mountain finds another for his pack..."