Because people in general would prefer to shit on the person asking to feel better about their own mighty intelligence and preserve ego. That said, I have to admit there are some pretty low effort questions around on Quora that sometimes I wonder if they're just generated by a bot actually. The whole 'explain what the difference between dog vs dogs is' type questions do leave me perplexed
>explain what the difference between dog vs dogs is'
To be fair, I actually made a search like that recently and was directed to quora which actually had a question and answer related to the dogs I was searching for.
