I thought Buffy’s speech was harsh, too, but needed. Especially the part about Chloe being weak, stupid and selfish… because she WAS. Everyone in Buffy’s house know about the First. They know that it can take the form of loved ones, that it lies, that it reveals truths to suit its purpose, and that its one single objective is to conquer the forces of good. Chloe knew all of this, and STILL conversed with it, still listened to it, and let it drive her to suicide. Which was weak, and stupid, and selfish. Buffy’s speech was not a blanket condemnation of everyone who commits suicide. It was a condemnation of an individual who knowingly allowed herself to be manipulated to death (literally) by Evil.
I haven’t made up my mind about Buffy’s time with the men who created the first Slayer. I thought Buffy was stupid abnd narrow-minded to turn down the offer of more power, but I don’t really see any evidence that it was three tribesmen acting alone to create the Slayer. Their actions don’t negate the possibility that the Powers That Be didn’t orchestrate that or that the don’t govern the rules of how Slayerhood is passed from one Slayer to the next.
Dawn was actually not annoying! But when did she become so good at translation, especially of what I thought they said was Sumerian?