Additionally - suicide had and still has a strong stigma. Because people in the past fucking knew that it was a failure of parents, teachers and community. Depending on religion it was a mortal sin. Or still is even. That totally fudges the numbers. Happy little accidents to bury the dead kids instead of you know... outside the graveyard due to sin.

You lack to see how brutal the past generations were. Read up on black (poisonous) pedagogy. And even in media - behavior that was common in schools. Sure it was less "words" and more actual sticks and stones - but hey, it is of course totally impossible to evade anonymous online terror by going anonymous yourself then evade the gang living in the same village than you.