Vault Base is not as good as it looks. Its ergonomy is obsolete in comparsion with even basic type of base (cave). It takes very long time to get in and out, if you use the vault itself, not only place infront of Vault. On Requiem (TLA) is this solved, so you have two different ways how to enter. Long way (infront place, open doors, use elevator (or ladder), then same way out. Or you can go directly from worldmap to location with lockers directly inside base, and vice versa (using preview and different exit grids).
Most of bases are not used in its purposed way, but everyone puts everything on ground.
So in general, Vault base is something like lollipop. Once you saw it, you want it. But after you get it and taste it, you realize, that someone had sticked this lollipop inside his own ass.
On Requiem, there are cca 200 players playing daily (dont know exactly, but more than on 2238) and there are cca 30 players factions (because you can own more bases under one faction). So i think that there could not exist the list of names, but players could choose their own faction name, with ex post dissolution of faction, if they would violate any rule.