"Mining" is a bad word.
I've spent a professional career looking at the ways we humans are hard-wired and socially-trained to respond to words and patterns of words, and "mining" is a particularly evocative word, a word that contains a story arc in and of itself.
It's a negative story.
"Mining" tells a story of extraction and destruction. "Mining" tells a story of aggression against nature, a defilement of nature. What's the first image that pops into your head when you hear the word? I bet it's either giant machines digging a gaping, barren hole in the ground, or grimy men (and only men ... "mining" is the most male of words) entering a dark cavern of hard labor.