In my opinion, naked yukkuri is made by the abyuse community as a "bodied (lol) yukkuri".
It's not the normal bodied yukkuri that is most of the time, established as smarter and more well mannered yukkuri.
The naked yukkuri are made as yukkuri whose arrogance are amplified by thinking they have became superior from growing body and became stronger than normal yukkuri, without realizing their body is tiny and ridiculous. The main point is the arrogance from it.
Oh, and the caricature body also works better for the usual anger inducing mental encroaching yukkuri wiggles.
With those in mind, naked yukkuri are usually shitheads.