I think the logical basis was most likely to isolate groups from other tribes. We don’t live that group over there. That group over there is trading pigs. It is a new rule, no the law, that you can’t eat pig. No more trade. A generation or two pass and the logical basis is lost to time.
If you really want to get into traditionally, meat used to also refer to vegetables, a.k.a. green meat. The word meat comes from the Old English word mete, which referred to food in general. More recently, green meat might have referred to animals fed exclusively on vegetables or plant based feed. And today, with the existence of veg-burgers or Beyond and Impossible meats, those are also sometimes called green meat.
So take me back a few centuries, and everything you eat would be mete, including that fish.
ZZ, more often than not.
For a long time, before the current snafu, editing your comment before deleting it was the only way to expunge it. Probably no real guarantee, because archiving the database was already a thing, but applying the edit used to also update the archive, supposedly. If it was just delete, then it would linger after you deleted your account. Modifying your comment or post, then deleting your account, that leaves the modified comment even though you now can’t go back and make changes or delete it. The suggestion I believe is to modify the content, then just delete the account. Deleting the comment isn’t enough supposedly, because some people have said that their deleted comments have been restored.
The cow is sacred in India, so they don’t eat beef. Most of the Western world won’t eat dog or cat, but that isn’t a universal thing and while probably not as common today, it doesn’t mean that it’s an unheard of practice. Until recent times, people would eat what was available which didn’t have alternative value.