Florian, isn't it predictable that people will give you the reply you have so far received, that they would prefer to be underrated, and isn't it the case that their expressed preference is frequently false, made in order to conform to social expectations of modesty ?
And isn't it also the case that, on a mundane level, it is standard to overrate one's abilities when making a job application or when bidding in a competitive selection process. I don't often hear of people who are concerned about the consequences of finding their exaggerations unmasked. We all want to succeed, whether we deserve to or not.
Who is going to admit to wanting to be overrated ? Yet, when this does occur, as you recognise it frequently does, at least among 'celebrities', do the beneficiaries acknowledge it ? If we were honest, would we not admit to wishing to be overrated, or is this only a trait of exhibitionists ?