Here's the thing, LHP is pretty much supposed to be a vague concept, that's the whole point and the whole appeal. Ask a Wiccan if they are an occultist and, in my experience, they'll ignorantly deny, because they even view "occult" negatively. Now we have two terms that are associated both being hidden and vague. The vagueness also adds to the shock / fear factor and I guarantee many of us got here through LaVey, so it's no surprise. Commonly we see it defined as perhaps use of "satanic symbolism", but then the Mormons are LHP. It could be raditically individualism, but ToS is LHP. It could be darkness, but crucified saviors and human sacrifice are far darker. Then there's people like me who can't be categorized as RHP yet I care about the collective, I want my ego in check, etc.
They're stupid terms.