Are you sure about this? I just flew four segments in THY F and the load was never more than 4/8. F pax seemed normal, nothing VIP about them and in the case of flights ex IST, we were all being held at the Prime Class lounge. The staff was friendly and polite, but would insist in not allowing us to leave the lounge affirming that a private cart would take us to the gate once economy and business class passengers had boarded. I have heard criticism of THY's "Feel like a star" ads, yet I think it's definitely true, well in F at least, lol.