Sorry mate you're going around in circles, some people take poorly paid jobs, some look out for better paid jobs. If I take a low-paid job does that mean I should expect to be treated badly? If I am treated badly am I not allowed to forewarn other teachers about bad treatment?
What about the schools that go out of their way to make themselves look great, pay good salaries, but then hold back pay, change contracts or offer terrible working conditions?
All I'm saying is that we should all appreciate whatever access to any information that there is - we can take it all in and, as you rightly suggest, make up our own minds whether or not we take the job!