I get the feeling a lot of gamedev communities are full of people who haven't built anything anyone wants to buy, and so get super bitter towards anyone wanting to try, or anyone who manages to make something that actually picks up steam and becomes successful.
They're the sorts of people that will go "X Game is objectively bad!" and then shill their own game which is also bad.
The same happens in art and animation communities, where something will become popular and people will disguise their feeling of "Why can't I get that?!" with "pfft, it's objectively bad!".