Why is Alde/Nontrans Castles There?

[Indra]

That doesn't address either of my concerns. Other guilds with interest in non-trans woe should not have to wait an entire week to prevent the other guild from gaining eco and accessing guild dungeon.

The 'double eco' effect, being the name given to the effect (eco not being the sole thing of value) that one guild can -defend- two castles without splitting their resources would still be there.