Honestly, if the culture is as bad as you say....the company is likely to perish or go into decline at some point. While there may be a moral argument around p

Honestly, if the culture is as bad as you say....the company is likely to perish or go into decline at some point. While there may be a moral argument around protecting potential new employees and warning them not to join. Or to encourage YC to better monitor their companies.... Having said that, to have an impact you would really have to go out of your way to make a point...there is a cost associated with that especially if you dont get the outcome you would like. Some people could potentially view you negativity or that you rat people out. Personally, I would not do anything unless it was something big like fraud or sexual abuse/rape because there is a moral argument and then the board/investors would really pay attention. If it is just bad culture, the board/investors could just turn around and say they are aware of it and are working with the leadership on this.