I don't think it necessarily is sloppy thinking though. To me it's more like - layman reasoning based on everyday experience without formal studies or detailed

I don't think it necessarily is sloppy thinking though. To me it's more like - layman reasoning based on everyday experience without formal studies or detailed knowledge of past work. The lack of formal studies means it lacks rigor and shouldn't be treated as factual, but if the area of study is otherwise a vacuum it can be better than nothing. I think the real big issue with it is that its lack of rigor makes it easy to use it to manipulate people, and it's hard to tell whether a given instance is based on good faith or not.