[_0w8t]

Compared with cows or sheep pigs eat what humans can eat, so growing pigs means wasting a lot of food that could be fed to people. Many historians argue that this was the primary reason why pork was banned in Islam and Judaism, not because pigs were considered unclean.

[MichaelCollins]

> growing pigs means wasting a lot of food that could be fed to people [...] not because pigs were considered unclean.

Heh.

https://en.wikipedia.org/wiki/Sty#/media/File:Green_glazed_t...

https://en.wikipedia.org/wiki/Pig_toilet

[t-3]

I've always heard it was because they'll happily eat human corpses (and other carrion). Especially back in the day, livestock were rarely penned, but rather let loose to forage. So pigs would be seen at battlefields eating corpses.