It's still a valid discussion, and on-topic...
When I was working for a consulting firm I worked in environments with Intralink, third party PDM systems and nothing at all. Each have their own nuances, and Family Tables are always a soft spot.
It depends on what you are doing, really. If it is standard hardware that looslib was referring to, there really shouldn't be a need to change the Family Table once it's done. When I was tasked with building part libraries for companies, I tried my absolute hardest to ensure that I covered every size offered by the vendor (I usually did it with a catalog in front of me). So, typically, those Family Tables should be regulated by a CAD Admin or someone who has been allocated this responsibility by the boss (maybe the boss him/herself? lol, not where I've worked.)
Now, for non-standard components that vary in size, there should still be some form of ownership over the family table. This may go to someone who is working on the project directly. Having a single person who manages the changes to the shared family parts is more of a "good practice" thing to do, since it reduces the possiblity of error and lost time spent trying to figure out how the Family Table got buggered up in the first place. Understandably, not everyone can abide by this all the time, and for that, it's good to have a tool like Intralink to find out what went wrong.