Reading @dwr.eth's blog. I would elaborate on this statement here to add that if you ask generally about a product, and they respond negatively, it means it's significantly worse. However, if you ask someone what they don't like about a product, or for how product x could be improved in order to ideate on how to make a better x, complaints don't guarantee significantly worse. 

It's only if you ask generally about a product and the default response is a complaint that you have something significantly worse

working on ambush and /noms :: nouns stan

yes here it is

https://danromero.org/significantly-worse-or-non-existent.html