For years I taught LNT as part of my outdoor classes but I always strove to stress it's an ethic not necessarily law. Unfortunately, I've also met too many LNT instructors who have allowed their own prejudices to be shared as "the law" when it comes to various LNT principles. When you are seeking information, and are met by an instructor like this, you will probably gravitate to their way of doing things. Even when it's not necessary. A new person won't know anything different and, if they're not willing to delve deeper into the issue, they'll just follow along with what they've been "taught" by this individual.
While I've been out of the field for a few years, when I first started teaching LNT, it was built around a set of principles that could be adapted to various habitats and environments. How you pooped in the woods/ocean/dessert, etc. was all based on various environmental factors. Now it seems as if it's more a codified set of rules. And, if you're an old timer like me, you might remember Paul Petzold's old saying, "rules are for fools." In other words, you need to do what's proper for where you are; not follow some prescribed to-do list. Tossing firewood into the bush seems to me to be following a to-do list instead of thinking through where you are, the overall environmental conditions and thinking of those to come who might need the firewood. Remember, another one of LNT's tenets is being considerate to other users. Leaving firewood for someone when you can is one of the most considerate things you can do for future visitors in my opinion.
OK, time to step down from my soapbox...
That's all for now. Take care and until next time...be well.
snapper