Someone who wouldnt realise that that definition applies to both insults isnt the greatest at reading comprehension

So if he phrased it as “The kind of person who would ask a question like this is a dumbass” not be immature name calling? Becuase that’d successfully not cross this weird line in the sand you’ve drawn

How is idiot not immature name calling, but dumbass is?

Exactly, and OP is saying they’ve decided to not contribute towards demand anymore