Rthro

Rthro is a new body type that was implemented in late 2018. It was first revealed in 2017 in a developer conference. The feature allows R15 body types to be scaled and also have more flexible animations.

Why it's unappealing:

 * 1) It goes againsts the style of Roblox's blocky aesthetic. The slender and realistic models contrast with the blockier and toy-like models.
 * 2) The models themselves (specifically the humanlike ones Roblox made) can be uncanny and don't feel human at all. The porportions are odd, bigger hands and head, thinner limbs or even animations.
 * 3) Roblox has been unsubtly trying to advertise Rhtro by shoehorning the avatars into their official images, this leaves many to suspect they are phasing out support for R6 avatars in the future.
 * 4) There is an argument that rhtro was made for developing games and for creative diversity, but this would backfire because you'd end up including some avatars that would be very intrusive to the game's environment.
 * 5) * This is especially the case for games that mainly only enable R6, rthro models in R6 mode move unnatural compared to R15.
 * 6) Limited customisation. You cannot put shirts or pants on most of these models as the textures cannot be changed and some accessories won't fit well with the models.
 * 7) Some of these models were obtained from asset stores such as Unity store which feels lazy and most of these models aren't for games with a style like Roblox.
 * 8) * One of them was infamously used in an NSFW game.
 * 9) Rhtro has been criticized to be potentially abused by Oders and trolls with some avatars and the scaling feature.
 * 10) Barely any game that supports Rthro, scaling or matching the style of these models. Many of the places environments are scaled to suit R6 players and the textures are simplistic in comparision to the detailed anthropromortic humanoids.

Redeeming qualities:

 * 1) There are a handful of models that are decent and somewhat fit Roblox such as Noob attack or Cyclock.
 * 2) If you have enough creativity, then you could create a good looking rthro model.