There is no other moral stance where someone could reasonably say this. Veganism is a moral stance the same way as "racism is bad" and "abusing my spouse is bad" is a moral stance. No one would ever say "I'm trying to limit kicking dogs to just Tuesday-Sunday".
> vegan straight edge kids on Instagram who sneak a chicken nugget when no one's looking.
You're projecting. Veganism is _not_ a diet.