What makes Someone like ie, Barbie any different from the man next door when it comes to getting banned species for research ..
If they are banned they should be left alone ..to recover..

I think that the fish cannot be given to any one person just because of their interest ,this is not in the interest of the species..
Only that of personal gain ..

How can you vet people... ?
Who is fit ?
People do loose fish in captivity!Filter failiure,Heaters,Poor water..
By all means study the fish in the wild ..GREAT...
Not in the aquarium there are now suficient captive specimens..