there are so many real ero trap dungeons that it's probably fair to make it into a tag. more importantly though, taking a look at how it is used now, it is basically used as a tag, so just merging themselves would be a good first step anyways, as even if they should be separated, it would be more work to go through each individual upload and remove parody -> add tag. On that other topic we might want a split system that would mark existing uses of tags for review or "selection required" etc.