Related:

• Just adding features because 'it won't hurt'--does.
• bells and whistles: [by analogy with the toyboxes on theater organs] n.
  Features added to a program or system to make it more {flavorful} from a hacker's point of view, without necessarily adding to its utility for its primary function....
• Brook's Law: Adding manpower to a late software project makes it later.
• Adding manpower to a late software project only makes it later. -- Brook's Law
• Brook's Law: Adding manpower to a late software project makes it late
• Functionality; All the Functionality; And nothing but the Functionality. -- Beck's Motto