I thought you'd made a typo. A "tome" is a heavy book, not a lengthy diatribe. The book could be a lengthy diatribe, but it could also be an annotated edition of The Odyssey. I suppose you could have called a long comment a "tome" out of playfulness, but it wasn't the clearest choice of words.

The tone in his usage of the word tome reminds me of tl;dr, or rather, tl; did read but will not argue your points.

Although the original post does come off as ad hominem.

"ad hominem" is totally going on the HN bingo card :)

Right next to "Dunning-Kruger", I hope.

Actually, it's always "Dunning-Kruger" with a link to the wikipedia article to make it more authoritative.