This makes it clear that neither renunciation nor scrupulousness is appropriate toward obligatory or recommended acts, whereas both are appropriate toward forbidden or disliked acts. As for permissible acts, renunciation is appropriate, but scrupulousness is not. This much is clear and can be understood with the slightest reflection.
The real issue arises when conflicting considerations bear on an act: is it commanded, forbidden, or permissible? It also arises when something ordinarily permissible is accompanied by a factor that makes it commanded or forbidden, or when something commanded is accompanied by a factor that makes it forbidden, and vice versa. Thus, when good and ill effects, benefits and harms, coexist and conflict, discernment is needed.