I noticed It's very cathartic for /v/. You get to write paragraph-long rants about how Overwatch is "objectively" bad, and you get to boast about how hardcore you are for playing Quake or Doom in your childhood. You get to be VERY smug to the people who still play it because, my god, how can people unironically ENJOY things nowadays? That's something shills do!
/v/ hates Overwatch because it's popular. Plain and fucking simple.