Featuritis
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.
See
https://www.interaction-design.org/literature/book/the-glossary-of-human-computer-interaction/featuritis-or-creeping-featurism
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