@otyugh @NPC that's a good point, uncommon is a subjective evaluation, so much of what's considered pathological in psychiatry is subjective, that's why "does it diminish quality of life" is so useful.
maybe certain traits in isolation are in the scope of normal but not together. or maybe they're conditional rather than actual immanent traits. like, say, feeling anhedonia because you're depressed, or other potentially transient things. it not being treatable pharmacologically is also another thing that characterizes personality disorders.