There's so much false teaching out there to pick and choose from it's like a smorgasbord or buffet of False doctrination, and so many people whether they are saved or not have no discernment including those who are saved, they've not done what it takes to inoculate themselves against deception so when deception shows up especially on social media platforms in their search for truth they see it as truth and not deception and they begin to build their system of beliefs around that doctrine to the point where they become fully convinced of it as truth yet the whole time it's not only erroneous but heretical, that's the way I see things, hope that helps