Please look up the names of things you’re tagging instead of inventing new. Derpibooru isn’t DeviantArt; please do not create your own tags for characters. Tank’s tag is just “tank”, not “tank the turtle”. Fluttershy’s sanctuary is called Sweet Feather Sanctuary, not Fluttershy’s animal sanctuary. And so on. It’s easy and fast for you to upload images with incorrect tags, but it takes others a lot of time and effort to fix them. That is why you should strive to tag them correctly from the get-go.