HMBA wrote "Maybe Jahbulon and Moloch speak to them directly, specifying the proper ritual forms and costume wear. [irony]"
well if your heretics are like our heretics (and it certainly seems they are) then that's not entirely ironic. Although 90 percent of them are merely illogical wackos, the other 10 percent dabble in some very dark things indeed; including witchcraft, necromancy, and all sorts of other evil stuff. If one considers the actions of the heretical leadership from this perspective, one can see that at least some of them are actively serving the enemy.
Appealing to pride, greed, power-lust, fear, intimidation, social peer pressure, willingness to compromise moral principles, etc. The reason why when looking at it it all looks so bizarre and is hard to make sense out of is because it was constructed by a non-human mind. [wink]