Ok, and which did you mine that don't exist anymore? Anything of note that was mineable the past 4 years is still around. I never entertained mining shitcoins 4 years ago because it was not profitable. Only exception was Ethereum. I mined it even when the price crashed down to $80 or so. But at that price mining was still an almost breakeven situation because of the difficulty level, electrical costs and the fact that the rigs were heating the home.DeadCoins - last count 1690