When I left the Conrad in Singapore, I handed a letter to the exec. concierge commending each member of their staff (by name) that made my stay special. Along with that, I did point out a couple of areas where they could improve and they called me to follow up. The purpose of my letter was to applaud the staff and give the property room to grow. It never occurred to me to ask for points when writing the letter.

Unless I am majorly inconvenienced, I would never consider requesting a point value from management.