The rule 34 is expected

Getting "Youtube Elsa Gate'd" is a fate worse than death

Having your work be the subject of clickbaity, pseudo-pornographic thumbnails in videos directed at children is such a bizarrely specific thing to happen.
Yeah, we've all heard of fans making outright smut; Rule 34 is a rule for a reason. But to be Elsagate'd, you need a very specific audience and it's almost never an audience that you'd intentionally gather.