No, it's not 6 blocks longer. It just needs to be 1 longer (i.e. 7 blocks since the last common block), which guarantees a higher cumulative difficulty and thus all honest miners will switch to the new branch, obsoleting 6 blocks on the old branch.
It would be impossible to enforce, and a place that HN that has leaders who evangelize AI as a cure-all would never do it, but "I asked AI and here's what it said" comments should be against the rules.
Most such comments are actually informative, and the honesty about asking an AI is an important detail. This particular one was heavily downvoted, as it should have been, because it was wrong. It was still a human writing, trying to be helpful.
tromp|6 months ago
skarz|6 months ago
1270018080|6 months ago
dragonwriter|6 months ago
They're almost invariably low quality and deserving of downvotes for that reason, but being open is better than them being camouflaged.
dotancohen|6 months ago
Most such comments are actually informative, and the honesty about asking an AI is an important detail. This particular one was heavily downvoted, as it should have been, because it was wrong. It was still a human writing, trying to be helpful.