Highlighted the main point for you. The key to your list is that you trust the AA members who create the entries. How would Adle's Archangels trust CMDR JoeSchmoe when he wants to add CMDR SealClubber to that list - and how can other CMDRs trust that Adle's Archvillains do not use this list to propagate their own KOS goals?
Assume that there are two lists - one by Adle's Archvillains, containing all known members of a sinister organisation named The Café, and a second list from the renowned organistaion The Café, containing all known members of Adle's Archvillains. And both of those lists were publicly readable - and publicly extendable? Or assume CMDR MagicHash, associated with The Café, publicly wants to add CMDR Polyester, associated with Adle's Archvillains, to that list - because Polyester once killed MagicHash, and had that documented?
As long as such lists are private to a closed player group, they're ok - the potential for abuse is small, you trust your fellow commanders. As soon as you go public, you'll either have to trust everyone - or you'll have to verify each and every entry on that list, defend it against people wanting to remove it and leaving yourselves wide open to any claims of partiality. You're effectively enthroning yourselves as judges. Don't go that way.
Let me try another formulation: as long as such a list is local to a player group, it is (arguably) still in-game. As soon as you go public, or just outside your player group, you transcend this boundary and make this list part of the "Real World". And the real world has lots of ways of making that backfire to you.
There are probably several reasons why FD don't maintain such a list, at least in public. The workload to the maintainers and the potential for abuse are probably two of them.
