Well, i paid 10 RX 47/570 for average 200$ month ago and now using electricity for 0.07$. What can you tell me to scare me out of mining? Do your best.
There is no reason for scare tactics.
An opportunist with hindsight would have noted, however, that somebody who mined for 10 months, sells the cards for 2.5x what he bought, waits 5 months for new Vega cards to hit market while GPU mining is in the doldrums again would probably do better than somebody who just keeps on mining with the 10 cards.
But it takes work to sell the cards and patience to buy the new ones on sale and redo the rigs. For optimum profits work is required. For an easy quarter to a dollar a day you can just sit on the cards.