It is generally held that a school whose name comes up on the review board will thereafter find it very difficult to recruit teachers.

Perhaps more importantly and this is a big point you ALL miss: Teachers who ........They will not be deterred from their unscrupulous ways but can be relied on to make life even more difficult.

I'm sorry John, but I don't follow your logic.

If a school is experiencing difficulty recruiting (and retaining) teachers and it responds by making life more difficult for newly recruited teachers (and incumbent teachers), won't that generate MORE complaints on this (and other) forums and make it even MORE harder for the school to recruit (and retain) teachers?

And, eventually, won't the school be faced with a situation whereby it cannot recruit (or retain) any teachers?

What would a school do at that point? Avoid recruiting foreign teachers altogether? Or, perhaps, take stock and amend the working / living conditions of foreign teachers?

History (India / Gandhi, US / Afro-Americans, South Africa / Mandela, et al) shows that the short-term response to speaking out against injustices may result in harsher injustices.

But, in the long run, perseverance prevails!