rotorhead
"The situation usually got rectified pretty quickly".
I flew for several South Asian carriers also (probably same as you lah) and these sorts of issues would slowly get solved also. One by one.
But not in China. Presenting a picture of a wing covered in snow and ice to your supervisors in a Chinese airline is not viewed very well. What would appear to a westerner to be an attempt to highlight a safety deficiency would be seen by a Chinese manager as questioning the honesty of the people charged with dispatching the jet.