Why You Should Stop Using “Uncategorized” .When you have blog posts listed as “Uncategorized,” it simply looks like you forgot to classify the post. Realistically, that’s the purpose of having the default category “Uncategorized” exist in the first place. It’s meant as a catchall in case you forget to classify the post. But remember, blog categories are meant to be useful to your readers. Having a blog post classified as “Uncategorized” is about as unhelpful as it gets.