It's not an "attempt of political correctness" it's an attempt to have a discussion about actual teaching practice.

Whether you like it or jot this is the ESL teachers board, not the "biased ranting board"

Yes, it is important to expose bad schools. It is not the only function of this board nor does it mean every school is bad just because you think it is the case. You actually have to have empirical proof and/or personal experience in order to condemn an establishment. Anything less and it's just unhelpful trolling.

By all means continue in the vein we are accustomed to from you, considering all I am trying to do is have a discussion about exam preparation methods, your tone proves without a shadow of a doubt which of us is the rational adult and which of us is the troll.