@edgarblythe,
Avocados have been around a long time yet no traditional recipe seems to have emerged using the ground up pits. Since pre-industrial cultures use every single part of anything available for subsistence, that would be a red flag for me.
Unless somebody produces some research which says so-and-so tribe has used avocado seeds in their cooking for centuries, I wouldn't trust it without some research. Let somebody else be the guinea pig for this.