No they are absolutely everywhere. Most people here don’t even know what HCF. This article is nonsense and paints it like some euphemism applied to modern coding. HCF was a joke and no actual implementation was proven. Fucking bots.
Author here. I wasn't trying to imply that this is a commonly used phrase nowadays. You can see from the sources I linked, there is definitely history to HCF and even some truth to its phrase. But yes, it was mostly a joke