Featuritis (or Creeping Featurism)
http://www.interaction-design.org/encyclopedia/featuritis_and_creeping_featurism.html

Soegaard, Mads
Interaction-Design.org

Abstract:

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.