Eh, most people burn their coffee or get shitty coffee. Salt helps enhance the coffee profile and decrease the bitterness that comes out when coffee is over brewed.

The number of people who don't know how to properly make coffee drives me nuts.

I think it's more of a tip for people who don't have a choice. Coffee isn't exclusively consumed for the taste.

I don't think they said they need to

Or get better taste buds