good idea but when you are at 45k miles and you need only 5k more, the ability to quickly transfer from some family member or friend can be valuable if you need to fly NOW.

That person could have either overshot or somehow decided to give up on overall collection and their miles are just sitting there doing nothing. One good thing Points.com did do was to convince the airlines there is some sort of market there...

I still have lots of friends who have hobbies other than miles (gasp!) who know very little about how to manage their old accounts with 5,000 here or 14k there...21,432 here, 24,999 there...

Good thing for referrals and idine too!
I praise the transfer concept and yet, it must be well managed to really be helpful to people and companies involved.