Forgive my ignorance. I'm a snake rookie. But I have a thought and a question.
1. This seems to be a snooty, exclusionary objection to those who may not be as informed as you. It is very petty. People use two words interchangeably because for all intents and purposes, they mean the same thing. Should a person come in contact with poison or venom, they could be in serious danger.

2. Since snake venom, in many cases, is poisonous to humans, then snakes are poisonous, right? Consider a spitting cobra. If it spits on your mouth And you swallow it, you die.

Like I said, I think you're just looking for something to be annoyed by.