I don’t really buy the idea though - cooperation has been the strongest strength of humanity and is one of our greatest evolutionary edges. Why wouldn’t that apply on the interstellar scale too?
Humans have not even advanced beyond attempting to dominate others of the same species.
I see some criticism of dark forest theory in here, but keeping quite and shooting first are the least risky options when the inentions or capabilities of another civilization are unknown and making assumptions about the other sides friendliness could lead to eithers extinction.
It seems like a big stretch to assume aliens are going to share ideas of liberal democracy like fairness/cooperation etc (which are fairly recent) when there are groups of humans who do not
Implied was that the actions to take if we had full info are obvious. If their capabilities are known you would not have to resort to "shoot first, ask later"...