It's not just a crypto meme to call price dips a sale. Same language has been used on stocks prior to the existence of crypto.
Bitcoin last year required something in the region of 134TWhs to maintain, for 4 transaction per second (https://news.ycombinator.com/item?id=29769892). Some nuclear pose stations generate over that in 20 years of production. The world is burning, but so long as you get more people to join the ponzi scheme, who cares, right, it's a "sale".