In reply to Rarst.

You're 100% correct Rarst. In my opinion, if a person does not have the skills of a computer scientist (OOP specifically) then they cannot really hold the title of a "developer," albeit outside of project management skills; UML, scrum, etc. Developers can develop because when their calculator breaks, they can still do the math, so to speak. It will just be a little slower.

Installation, light-weight customization, tweaks, etc., relative to the WP theme design or not, is NOT true development. You must know code/syntax, algorithms (e.g. optimization techniques), etc. to truly "develop" big [project] picture, small picture, and the realtionships between them to tweak code. THAT is development.