I support this idea. The only things wrong with Flarum are:
It doesn't have the functionality of Reddit, and the homepage isn't fluent. It could stay that way, but an extension would be officially better.
It lacks a visual appearance. For example, there are many templates. However, they all look similar. There aren't any distinct visuals like WordPress.
It would be great if there were both extensions and templates that could be used for different purposes. For example, if someone were building a site like Reddit, or if someone were building a news site.
I've also been seeing Flarum sites lately, and they look different, and they feature three blog posts on the homepage. However, I've been looking for a while now, and no one has developed an extension for this, or they're keeping their work a secret.
Also, I really like @huseyinfiliz 's work. He's doing great things for Flarum. He listens to our needs and contributes to the extensions he develops.