I’d argue that unfun design elements can be useful in games if used with care and purpose. For instance, “suddenly all of the characters you’re attached to are dead” is not exactly fun but one of the Fire Emblem games used it to great dramatic effect at the midway point.
Of course the line between an event or mechanic that players love to hate and one they just hate is thin.
But you can tune the specifications of the yarn to theoretically make the socks up to 2% more comfy. In practice your tuning efforts will make the socks less comfortable and tear more easily.