I think, if you have too many profiles, you lose some; and it seems to be the one you want to keep.
I have let go of a lot of profiles, some have been adopted, some not. I hate to see those unattended, I want to re-adopt the ones that didn't get a manager, but I have noticed that in doing so, I find some profiles I have lost again (either unattended or taken by someone).
I am going through my list (files) now, I think I will just adopt any that has not been claimed and see what happens.
Thank you for all your answers, it is very helpful.