Couldn't agree more. Somebody above mentioned Drupal, which is also a widely-used PHP-based CMS, but (IMO) far superior to WP (Comparing the two communities is night and day — when I published my first Drupal module, I got hours of community support and released something that was high quality and reviewed by a member of the security team. With my first WP plugin, the most code review I got was somebody who ran it through a linter). Alas, theming Drupal is awful (especially if you're a designer who's invested in learning WP theming); my personal opinion about why it's never gotten anywhere near WP's market share is largely (largely!) due to the lack of themes.