Dear normal people being confronted with hardcore negative nerds (there are also a lot of positive, friendly ones) in your comments, there are two terms you need to know about, IMHO:
- Bike Shedding (AKA the Law of Triviality) [1] meaning that some try to move the discussion to a tangent that they know more about and
- Pigeon Chess [2] meaning that someone will completely ignore context and emotions because they want to make their point
[1] https://en.wikipedia.org/wiki/Law_of_triviality
[2] https://www.urbandictionary.com/define.php?term=Pigeon%20chess