James Shakespeare, talking about WordPress core, said in his post “The Dire State of WordPress” what I feel as well:
- Views, controllers and data are mangled together in a way that makes even the most well-written themes hard to maintain.
- Helper functions are inconsistent
- There are no rules or best practices for theme development, so inheriting legacy code is a nightmare.
- Designers and front-end developers struggle to make changes because their files are full of functional code
- PHP developers struggle to make changes because their files are full of template code
- It’s not optimised for speed of development or speed of operation.
- There are about fifty ways to perform any given operation in WordPress, but determining which way is best pretty much depends who you talk to. Even the documentation is chock full of caveats about obscure scenarios in which you should and shouldn’t use certain functions