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 hideous:

 * 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) Roblox is unsubtly trying to advertise Rhtro by shoehorning the avatars into their official images, this leaves many to suspect they are phasing out old avatars.
 * 3) 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.
 * 4) This is especially the case for games that mainly only enable R6, rthro models in R6 mode move unnatural compared to R15.
 * 5) Limited customisation. While decent, you cannot put shirts or pants on these models as the textures cannot be changed.
 * 6) Some of these models were obtained from asset stores such as Unity store which feels uncanny since most of these models aren't for games with a style like Roblox.
 * 7) One of them was infamously used in an NSFW game.
 * 8) Rhtro has been criticized to be potentially abused by Oders with some avatars and the scaling.

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.