While you are correct and it would be more accurate to call them 'impulsive reactions based on limited information' than 'common sense' - that doesn't make it a good thing. And in fact it's quite bad. Though Reddit has about 90% of their comments to thank for people doing that. They react based on the title of an article, without reading said article, nor the facts the article is based on - and other people arguing with them about their reaction.