They are referencing the sticker in the image, but I’ve never heard of halal milk as you need to take away a mother’s baby which is inherently cruel and therefore haram so not sure what that’s about.

Yes halal certification only confirms that they are killed without stunning or anesthesia while speaking a specific phrase. However keeping them in small cages or hurting them in any other way during their life is also haram so basically all meat, milk and eggs are haram while at the same time some meat is halal certified.

Generally these kind of websites turn into companies that take hush money to delete bad reviews, eg glassdoor/yelp

The comic (and you) are pretending veganism is just a silly diet instead of a social justice movement. You may not be doing this intentionally but the OP posts this same misuse day after day.

Similarly if someone repeatedly posted jokes about another social justice movement, eg feminism, that would get pretty annoying too.

This user regularly posts intentional misuse of the term vegan either as misinfo or ragebait.