Hi wakaowalao, (what a very long name)
I have to admit that I feel helpless to stop what you deemed, like many others, exploitation of a fellow photographer.
However, no matter how much we ask the TS to stop and admonish her for encouraging her friend to find a cheap solution here.
The unfortunate truth is that there can't be a restriction placed here, for example, if you want a photographer for $X/hour, you are not allowed to post here.
We can only change people mindset's via our own area of influence, be it big or small, by declining these jobs and educating them one person at a time.
It seems that you think otherwise of my intentions (or I'm misreading you), but let's move in our different ways to change the landscape.