Cacao are OK to suck on (to get the pulp around the seeds), but the seeds themselves taste utterly vile.

I imagine it's not too different from eating a spoonful of raw cocoa powder

Cacao powder has been dried and fermented at least, and usually it's roasted too. There is something else done in dutch processed powder. It's probably a very different flavor. I've never thought to eat the seeds raw, but now I will try them at some point.

Agree, this is now on my short list too :-)

I disagree. After drying for a few days they just taste like unsweetened chocolate to me. Very similar to the cacao nibs I used to purchase, which are indeed just broken up seeds.

After a few days they have been dried and fermented, though.

Most seeds dont taste good unless they are processed right?