Why are some explanations bad?

I like understanding things. Many explanations strike me as insufficient, and I wanted to know what features characterize the explanations that frustrate me. I looked through answers to why questions on Quora, found ones I didn’t like, and tried to find patterns in them. So far, I've come up with the following ways that explanations can go wrong: Insufficient specificity Often, when I'm asking a why question, a general answer will not satisfy my confusion or curiosity. It’s common, though, to not answer specifically enough, ranking as my top complaint with explanations I looked at on Quora. Here are some examples of cases where an explanation lacks contrast: Question Insufficient explanation Problem Why do people believe in the supernatural? Because they have confirmation bias Any belief can be related to confirmation bias. What about supernatural beliefs make it more related to confirmation bias than others? Why do people scroll social media? Because they get dopamine from doing that Any behavior could be explained in these terms. What is special about social media? Why are plants green? Because they emit wavelengths in the range of 495–570 nm All green things emit those wavelengt