Your opinion is true. However, I myself also have some thought, the additional thought about the strategy in this bear market.
The strategy will depend on what coin we are owning. Since, different coins may need the different treatment or strategy. HODL, buy more, and sell coins, should be thought deeply. It may be one of them and maybe all of them are good.
Hence, it may be better to diversify our investment in this bear market.
1. HODL
If we think of HODL, we must know which coins are perfect for holding. Commonly the coins from ICO with the real product in the future will be very promising for HODL. But of course, analyze the right ICO tokens or coins that really have promising concepts in the future. Then, we can also make hodl for some promising and big volume coins as listed on the market such as Ethereum and EOS. They are considered profitable for the future.
2. Buy more and Sell
I think this decision relates to trading strategy. In this bear market, the chance for trading is also still promising. What we must do is analyzing which coins are good for day-trading. they will have big volume and high circulation on the market. We can be a day-trader to buy the coins in the low price and then sell them after increasing some and so on. For example is the Doge coin, ADA, and also Tartaria.
However, I'm sure that every holder has the different strategy to come up with the profits.