I just googled it and it looks like “n8n” is the name of the service. The op wasn’t abbreviating anything so I don’t think it’s the same phenomenon as what you’re describing.
Well, the service is doing the same thing though. The part I don't understand is that I assume n8n is short for "Nation" but literally every single person I've seen talk about it on YouTube (which is quite a lot) say "En Eight En" every time.