Title text:
You say no human would reply to a forum thread about Tom Bombadil by writing and editing hundreds of words of text, complete with formatting, fancy punctuation, and two separate uses of the word 'delve'. Unfortunately for both of us, you are wrong.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3126/
What if they don't know the code and just use a keyshift instead?
Throw them into a lake, I guess. If they sink and drown, they're innocent. If they float, you know they're full of (buoyant) shit (and can then safely burn them at the stake if you want to).
Ah, welcome back, Witch Test..