I bit the low-effort shitpost and followed the link. Sophomoric. That wall of shittext isn't going to throw anyone off the faith in Jesus and his Majesty. The extreme retard might be intimidated or enticed, but the fate of the ignorant is a different theological question altogether.
Most Satanists are larping and missing the point. Their obsession with Christianity and their neglect of other religions is actually good publicity. And while emos and vampires may think whatever they want, there is the fact that the entity they follow is indeed dangerous and deserves to be well guarded against.
While I am not Orthodox, I admire the teaching of Father Spiridon Bailey concerning the devil. The religion of the antichrist, he teaches, is not coming as any of those clowns. Instead, it will come into the world as fully Christian in appearance, and only then will it exceed the most heinous crimes of paganism.
Please consider watching:
May the Lord bless you and keep you, on Jesus' name.