Honestly good on them. We've seen that the rise in ChatGPT spam has led to spamming of repositories with poor quality PRs [1] and this whole AI craze just feels like the SEO disaster hitting mach 10. The quality of content or answers doesn't actually matter, just that it's formatted in a way that seems authoritative. This stuff needed to be purged from the internet yesterday.
[1] https://mastodon.social/@danluu/110335983520055904