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What Anaris means by "unbreakable alliance" is what North had or something like what CE formed on AT. He doesn't want a large mega alliance that goes on forever. You can still have an unbreakable alliance but only under your alliance limit. He doesn't want you to circumvent that by establishing a guild like Alliance of Free Nations on Dwilight. If you want a certain realm to be your ally, then ally them. All realms that are not allied to you are not your allies. It is as simple as that.
If realm A + B are fight realm C + D, instead of jumping in to attack either AB or CD, you should go for realm E or F or others.
If you introduce number sand tangible in game consequences, people will just find a way to circumvent them. It doesn't matter how well things are coded. You cannot block every hole. That is why things are kept somewhat vague.
