WordPress templates make creating a blog or a website incredibly easy. There are many choices available at WordPress.com and even more at wordpress.org (.com represents sites hosted by WordPress; .org is where you can download the platform for self-hosted sites).
However, just because it’s easy, doesn’t mean you should be lazy. A fairly high percentage of the blogs I see using WordPress still have the template header photos intact. The whole point of these templates is that you can upload your own images! Talk about making your site generic. Every person who has browsed through the WordPress templates knows what you’ve done.
One of the worst abusers I saw was a self-styled social media maven who left the lovely image of a Caribbean island as her header. Come on. If you’re going to preach the benefits of blogging, at least learn how to upload an image. Or, if you prefer, use a template without one.