Might be worth checking your network for malware to make sure you're not unwittingly running a residential proxy network. Most often these come from things like free games, which your kids may have installed and "agreed" to the ToS for. AI companies use residential proxy networks, created from things like free games with strings attached, to circumvent blanket datacentre blocks that obstruct AI scraping.

Blocked here too, never visited the site before. Should we "flag" the story for this, or?

Are you using Cloudflare DNS?