There’s a mean-spiritedness to even many of the early strips that, at the time, I thought was part of the gag - a sort of self-knowing nod to and mockery of the mean parts of office and engineering culture. In the spirit of ‘laughing with not laughing at’.
I’m not sure if Adams’ later real-life self-superiority and mean spiritedness evolved from that over time, or if he was always like that inside and we just didn’t see it, but I find myself unable to laugh with the strips in the same way now nevertheless.