I'm not sure that's true? Gatekeeping is definitely about keeping out/removing, but that doesn't mean that it has zero or negative value? For example, there's

I'm not sure that's true? Gatekeeping is definitely about keeping out/removing, but that doesn't mean that it has zero or negative value? For example, there's absolutely positive value for users in filtering spam. This tends to be negative value for spam senders, but that doesn't detract from the user value.