I have to agree with @Morten Rand-Hendriksen about beginners. I work with them all the time, and the belief WordPress is fantastically easy for beginners to learn and use is, at best, half-myth. The most common complaints I hear are overwhelmingly about the admin Dashboard--way too many exposed options and features, too many different ways to do the same task, and no clear path through the interface.

And more often than not, the beginners I help or talk to don't understand the difference between a "blog" and a "website"--or rather, they almost always want "a website with blogging", not "a blog". In other words, they don't really care about "posts", and are confused by them when they don't really want a blog. In fact, most WP beginners I talk to want (a) the front-end design part to be (a) much simpler, and a CMS (though they don't call it that, of course). The "header image" functionality, for example, is awkwardly bad and outdated for today's needs.

And so on. WP really is headed down a path of diluted strength, I think despite best intentions. I'd support a fork of some sort, or even a re-imagining of things.