As an example, HN often has socially-related posts that hit the front page, such as today's Voice Modulation in the Interview Process (not actual title). This gets people from two very different sides that are informally split, depending on who you ask, as "overly politically correct regressives" and "stupid racist [___]phobic bigots". A bunch of conflict that detracts from the study/topic happens when those two groups butt heads.