There is going to be a fair amount of selection bias in pip announcing they beat a pip. Getting fired isn't fun and so people won't brag about it. There are also other comments in this thread about people being pip'ed dishonestly.

So people's experience will fall into a few categories: * People who are not doing well * People where the expectations of the job are (honestly) different between employee and employer. * Trying to create cause to fire an employee / avoid layoff news.

Absolutely, that’s why it’d be interesting to have an actual study about it. Otherwise it’s just runaway speculation, and all we can say is there are many companies and managers and they all work differently and your experiences may vary.