The inverted pentagram wasn't viewed as a symbol of the LHP until much later on after that image was created. The Baphomet wasn't originally a LHP symbol, either. It was adopted as one, again much later on.
That's the interesting thing about the modern Western LHP. It's sort of resembles Wicca in how they just sort of appeared in the mid 20th century. The LHP has precursors in French Occultism, but there's really nothing more than very still modern and new ideas establishing a contemporary Western LHP. And it's put us in some interesting positions A lot of what's out there is spiritual and emotional/psychological junk food, a hefty deal is just an excuse to be an *******, and even LaVey was more reactionary and shock than anything original of substance, amd even contradicting in how the Satanic Bible seems to both acknowledge as real while simultaneously deny the existence of magick/mystical forces.
And then there's the modern knowledge we have, with the LHP essentially upfront acknowledge the "traditional" modern views are built on hogwash. Satan is a Christian invention that's foreign to how we're told things work before this curveball about Satan is thrown at us in Matthew. We've learned Lucifer is a typo of sorts that actually refers to Nebuchadnezzar. And of course the emphasis on truth and facts and accepting reality makes us face the reality that while we aren't exactly making it up as we go along because it is based on legit ancient practices, but we're basically making it up as we go along. Essentially, we have the tradition of violating taboo for growth with a modern consensus that demons and fallen angels are cool amd the culturally appropriate counter to the mainstream Christian religion, but then we're back to acknowledging the glaring issue with this and the LHP being defined by what we're supposed to be opposed to.
But, then again, life itself is even messier and makes even less sense and full of all sorts of paradoxes (especially us humans) so it's whatever. Except the question of what to do when your growth stagnates because eventually when taboo becomes your norm you become stuck in a rut due to sucking the power from the taboo and leaving it deflated, leaving nothing but your normal routine and the people who make comments. And you can only go so far until you cross over unto things entirely unethical (like stealing for reasons other than survival) or illegal (animal and human abuse and murder). Amd indeed somethings shouldn't be violated, and other people should be respected with basic human decency until they've demonstrated they're not deserving or worthy of it.
I suppose ultimately if one were to fully go through to the end it would mean violating a very personal taboo shared by many of the LHP, and that is forfieting our autonomy, abandoning auto-deification and handing over the reigns of our life to a RHP god and his priests. Eventually what else is left?