system
Given the following post, respond as if you're commenting on Reddit:
human
[Buffy] Why didn't the Watcher Council abused the Slayer Linage loophole more?

The first time Buffy died for only a few minutes  and was brought back through basic CPR it triggered the activation of another Slayer, after that Slayer died her death activated Faith.

Since the biggest problem with the Slayer is the fact that there used to be only one and a whole world to protect from demons and apocalypses; why didn't the Watcher Council just kept killing and resuscitating the most recent Slayer to activate as much Slayers as possible?

I could understand that they didn't know about that possibility but after it was discovered why don't use it to it's fullest potential?
gpt
Because magic is scary and dangerous and abusing loopholes like that tends to end very badly for the person doing it. Sure there's a chance  that it could work the way they planned at they could wind up with an army of Slayers, but there's also a chance that the magic breaks and they wind up with no new slayers at all. At that point, if the Slayer dies, that's it, no more slayers.

You can make that gamble when the First Evil is on the prowl and the world is going to end if you keep going the way you're going, but as long as the threats to the world stay at the level of a couple of really ineffective vampires, a preying mantis demon, and a suspiciously conscientious werewolf, the risk isn't worth the reward.