I have two strong opinions on two of the questions. I do feel I own these miles and would like to see them easily go to my daughter in the event of my death. (I know there are ways around that...but would like to see it just slide over to her account).
Secondly, I do not feel members should sell miles, but sure wish, for example to be able to exchange 25,000 AA miles or so with a Delta or United member for their 25,000 miles. Sometimes we must fly outside our preferred airline but have no miles to upgrade or purchase awards on these other airlines.