Funny, you said it was a terrible advice, terrible advice after a coin rose 15 times its price? that is no terrible advice, anyway, in the world of crypto, there is gamble, you take a little, big or no gamble  at all, my advice was "better be safe than sorry", when a coin rises 15 times in few weeks, you sell and be happy about it, being greedy is good, being too greedy is bad, in the end the important thing is do not be a sucker, as long as you are in profit that is what matters.

About gpus, the time to buy gpus while being safe was before january 2021. There was enough stock before january at msrp, that was the right time to gamble on it, my advice after january was not to buy gpus because gpus were 3 x or more than msrp already, my first rule of safe mining to people will always be, do not ever buy overpriced gpus and as long as you dont do then you are it right, this case of the op is hey I wanted to be too greedy and "in the name of the bear market is coming" i missed profit, people need to choose what level of gamble they want to be in and do not blame the advice others say, everybody has a different view of things, some gamble 100%, some gamble 0%, some stay in the middle and gamble 50% and so on.