what the hell was this thread about?
Oh yes, why they were leaving....
Some people are going for more money at UPS some returning to former employers. As the idea of being based back in their home country was more appealing. Some didn't get along with some of the trainers. Some had family issues. I have actually spoken to some of them.
Yes it is a bit different here. Doesn't mean it isn't possible to enjoy it (although reading the stuff here would make you doubt it). It is also not for everybody. It is different than working back in your home country. Different culture than other airlines too. But it works just fine for many, not so well for others.
Some things could certainly be improved, but that can be said about most airlines.