By the way, as your nose gets more used to the bolder ouds out there, you might realize that "pungent and barnyardy" are more accurate descriptions.
And for the more 'fecal' ouds, they have more of a chocolate note which, combined with pungent+barnyardy, might give the impression of being fecal.
To answer the original question, I do find 'fecal' frags addictive, but like I said they aren't really fecal to me any more.
More specifically, I find Indian ouds to be addictive, as they're the ones that are typically described as being fecal. I don't wear Indian oud as a fragrance, rather, I use just a tiny dot on the outer side of my lower forearm (good longevity here, plus easy access for the nose) and just sniff for hours and hours.
When I use Indian oud, it is for me, and not for others. Its not for me to wear, but for me to sniff. If that makes sense!
Incidentally, Indian and Lao oils are the most "fecal" and they happen to be the most psychoactive of all oud oils as well. Once your nose gets over the boldness (shouldn't take more than 1-2 weeks), the scent just grounds you and calms your mind.
Here's a good exegesis of oud oils by geography, on the Olfactory Rescue Service blog: clickety-click.
Ambergris also has an animalic and 'poopy' aspect, and I find that sniffing it also makes me happy for some reason. Something about it tickles the back of my brain in a yummy way.
And then of course there's the king of all scents, musk. That's about as animalic and poopy as you can get! To my nose (or should I say brain), the most addictive fragrances are and/or contain musk and oud. Natural ones, of course, as the synthetic ones simply capture 1 facet out of a million found in the real thing. Think diamonds.... if you have just one facet and it will look like glass. Have a multi-faceted, brilliantly-cut piece, and it will take your breath away.