Not like I have a problem with them. They are funny but can be inappropiate. I wanted to get the age rating to 8 but these memes can sometimes be a little inappropiate. I even made some joke vídeos myself. Its very good and the community isn't that toxic.
I feel like this app is great for kids to make silly videos on. You can use a gif, photo, or video with lyrics of your choice. Many kids will use this innocently, but this can be used irresponsibly! My friend showed me a ditty he made saying that I have a huge dong and great Fortnite skills, with a borderline pornographic background! A tip to parents, monitor what your kids make on ditty like you would do with their social media.