Featuritis (or Creeping Featurism)

Featuritis or creeping featurism is the tendency for the number of features in a product (usually software product) to rise with each release of the product. What may have been a cohesive and consistent design in the early versions may end up as a patchwork of added features. And with extra features comes extra complexity.

Soegaard, Mads. Interaction-Design.org. Articles>Usability>Interaction Design>Project Management