Not that I care to weigh in on a topic that isn't my thing.
As someone said earlier, it is part of how some people express themselves, though it goes a bit deeper than that, especially here on the internet, the need to tear others down, whether intentional or not.
There is also the context in which the comment is made, for instance, the two guys with 1:1 build threads. I'm not into either of those make/models, however, I can absolutely appreciate the time, expense, and skill that has gone into their creations. Is it necessary or wrong to express that the vehicles themselves are not my thing, probably not, but in so doing, I think the take-away should be, "hey, this guy may not like this make/model of car, but he sees the vision and quality of the work."