"Despite this method seemingly providing a free gateway to unrestricted Windows 11 and Windows 10 keys, there is actually a catch. The keys generated were generic license keys, which means that while they will allow you to install or upgrade Windows, the resulting version of the operating system will be restricted and some features will be limited."
It's just pulling freely available upgrade keys from it's training.
I know we're angry at reddit.. but no, this is not illegal anti-competitive action.
Mods can remove anything they want from their subs, it's not illegal lol.