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/
iirc its m-dash as well as constant rule of threes and generally using incredibly formal sentence structures even when the language involved is not formal in any way. Kind of like what I just did there though probably with an extra comma after m-dash.