system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Trek] Why do the Borg bother to announce themselves?

I'm sure in their entire history no species has been persuaded to lay down and willingly be assimilated. Seems like a waste of time and inefficient.
gpt
They give species the opportunity to give up without a fight, without the pain of total war. To some, it probably seems like a much better option to be assimilated than eliminated. 

There's no doubt that plenty of species have quickly succumbed, so it has probably been very efficient for them to simply state their objectives at the onset and just get on with it. The Borg aren't remotely blood-thirsty. They have zero interest in war just for the sake of it.