My strategy : buy with all you savings which you can afford and HODL. When the bear attacks, buy and the again HODL
Good strategy and l prefer also buying any coin at a low price and hold till price increasing, then sell them. Maybe it is the best strategy, but during this time it is so hard to find any coin which can be profitable in the future. For that reason l prefer top altcoins, l think if you can be enough patient you should collect some top altcoins like ETH. That is why top altcoins are great choice for long term investing, it seems price increasing will take a long time.
Actually if you will ask me it is a good strategy or not, my answer is it is not a good strategy. It is not even a strategy, probably the creator of this thread are basically making money from it because of luck. HODL is not always the answer for us to earn a lot of money, there are a lot of factors that should be consider when you will do HODL like time, allocation, stop loss levels and many more.
HODL is a decent "strategy" in an "ever-growing market" like crypto, but once in a while, dips will make you lose all your profits and set you back for a year or so. Someone who bought BTC at 15k before the ATH (so not even at ATH), and HODLed since, was pulling hair at every drop, down to 3k, and is still to get into profit zone, prolly not for at least a year or so.