At the time I wrote this, there were 23 comments here. The majority was from self-declared vegetarians/vegans. That means that either that's the prevailing food paradigm among HN readers, or they're more vocal about it than non-vegans.
Not really, it just means that vegans/vegetarians are more likely to post comments on an article about Quorn, which makes complete sense. You won't see many top level comments from meat eaters because most of us don't eat Quorn.
That's the prevailing food paradigm among HN readers who have something to add to this topic, which is about a product that is mainly consumed by vegetarians and vegans.