Within the big 6, let's say, poaching is allowed in the sense that if you have an acceptable letter of release from a big six employer then this big 6 company will employ you. I was surprised too but this is a fact, poaching is allowed within the middle east provided your employer gives you the paperwork you need.
Currently 13% expansion per year in the middle east, that means double in 5 years, which means an additional 10,000 pilots by my calculation(super rough). Asia including china double in 10 years, so M.E. is still where the real growth is.