I don't believe they get stamped in for 10 years, the passport is unlikely to last that long.... saying that, I am not familiar with all the T&Cs of this Visa type. I used to take interest, but there are so many different Visa types nowadays and with varying T&Cs that I lost track. Suffice to say if agents can get this LTR, bypassing some requirements, yes we would have a lot of younger Expats, probably looking to earn money here.