Feature creep

Creeping Featurism is a deliberate spoonerism used (usually within the sphere of computing and information technology) to describe the (oftimes erroneous) idea that more features make a thing or product better than the previous version. The negative connotations of "Creeping Featurism" principally indicate the "enhancement" of a product with spurious features which have been added with little consideration for any putative benefit or, more customarily, disadvantages.