If I was to turn a non adult blog into an adult blog would I need to re-tag all the existing images with “Sex” “porn” “adult” so that a photo of a tree doesn’t come up through Google and land the viewer onto an adult blog with adult and non adult photos mixed together?

I have looked around at a lot of adult blogs and they have little content past cock shots and wet holes. But what about the personal blogs with adult content mixed in?