It's a bit more than that. Look around at many of the posts in the Macbook Air sub-forum. There are more than a handful that are outraged that Apple dare continue to sell the Air. If it was simply a matter of wanting the newest and latest tech, Apple sells the Macbook Pro with touchbar. And if anyone is actually pleased and delighted by owning and using an MBA, those same people are critical of them. Couple that with the fact that they have to go out of their way into a Macbook Air-specific area of the forum, and it is something else.
I don't know of any Macbook Air owners who are offended that others prefer one of Apple's other notebooks.
If you think it's bad here, try going to the iPhone subforum -it gets more vicious there. These forums used to be about helping each other. At least in these two subforums, it seems to have gotten to justifying why people got the shinier device/machine or the less shinier device/machine by attacking the other side. Too bad but it seems that it's become more about image than what works for each person - "because I got the shinier and newer device. the others are inferior" or "because I got the less shiny or newer device, I'm smarter".