I think that is pretty unlikely. HN doesn't use Cloudflare at all as far as I know, and not to downplay the scope of the outage, but Cloudflare's core CDN Offering is fine. Other core services such as Cloudflare Pages/Workers/KV are also fine. This is mostly addon/developer products, the biggest of which (imo) being R2. If you log out, it loads a lot faster (at least the main/cached pages)