Attractive people are not only seen more favorably, but also more accurately, maybe due to their acceptance being relatively decoupled from their behaviors, which lowers inhibitions and allow for better "study" of their personalities

The Good Target of Personality Judgments. Marie-Catherine Mignault and Lauren J. Human. In The Oxford Handbook of Accurate Personality Judgment, edited by Tera D. Letzring and Jana S. Spain. Mar 2021, DOI 10.1093/oxfordhb/9780190912529.013.7

Abstract: Being a good target, judgeable, or high in expressive accuracy plays a fundamental role in the accuracy of personality judgments. In line with Funder’s realistic accuracy model (RAM), targets are responsible for the quality and quantity of information—or cues—they provide to judges, and have the potential to influence how much attention and cognitive resources judges dedicate to those cues. In this chapter, target characteristics are discussed, such as psychological adjustment and social skills, which influence each stage of the RAM, thereby distinguishing good targets from targets that are more elusive or difficult to read. To conclude, possible intra- and inter-personal benefits of expressive accuracy and potential ways to enhance expressive accuracy are considered.

Keywords: good target, judgeability, expressive accuracy, personality judgment, psychological adjustment, social skill, realistic accuracy model