Why do religions still teach that 'hell' is a place of torment when it is not (Jer. 7:31)?

Yes it is. At the end of the world.

Revelation 20:5-10

Well, the answer is obvious. For 2000 years Christian theologians have been dead wrong and now you have finally come along to set us all right. Thanks so much :)

Okay, all kidding aside, I wish Hell wasn't real, but there is simply an overwhelming amount of Scripture that compels any serious student of the Bible to accept its existence. Jeremiah 7:31 simply doesn't apply. All it states is that God does not want people to burn their children in ritual sacrifice.

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Hosea 9:15

Romans 9:13

1 Samuel 15:3

Psalm 5:5

Leviticus 20:23

Psalm 11:5

Deuteronomy 25:16

Because theirs no doubt about the Love part, eh?

Dont worry. If there are a billion christians that means there are a billion different interpretations of the Bible. As an atheist I take no notice of any of them.

That verse refers to the people of Judah setting up pagan idols and sacrificing people to the false gods. Please don't take one verse at a time and think you will fool anyone. You are detestable.