Martin Luther didn’t have a cult of personality, he more had grievances, legitimate and otherwise. I think one of the best examples though is L. Ron Hubbard and David Miscavige.

I think the big thing here is it’s both a cult of personality and an outlet for the cultic milleau that was brewing before it found him. The satanic panic found new life in Qanon. But also I don’t think that that portion alone is powerful enough to outlive him