I went through my answers (and questions) and poisoned them little by little every day with errors

You are an evil genius (also, a very determined one - I wouldn’t have had the patience).

Well… if one must believe their own logo, (see https://sata-io.org/) “SATA” shoud actually be expanded to “Serial ATA” :)

Acronyms of acronyms may not be super-common, but they do exist: eg. Cisco has a network protocol they call “PVST”, which means “Per-VLAN Spanning Tree”, where “VLAN” is “Virtual Local Area Network” (or “Virtual LAN”; LAN is another of those acronyms that is mostly regarded as being its own word).

In open source, there’s a long tradition of recursive acronyms: eg. “Linux” means “Linux is not Unix”, which you can’t be expanded (in finite time) according to your rule :)

I love you bot, but… PCIe is just “PCI express”, NAS nowadays means more “home server” than network-attached storage, and no one even ever knew what SATA is supposed to expand to.

There are acronyms that are shortened versions of meaningful names and then there are acronyms that are actual meaningful names for which some meaningless (and quickly forgotten) expansion happens to exist.