Usually they experience those thing if they are trading their Bitcoin. They have huge chance that they get burn and maybe with that these people would learn to be more extra careful dealing with their future decisions.
But if they are going for long term investment, I guess that situation is not needed anymore since we are not gonna lose our money especially if we are not selling. Also there's good chance that we could even earn more especially if Bitcoin would undergo for more bull run phase in future. That's why to HODL Bitcoin is more better than trading it since this is more convenience way to deal with our Bitcoin and we have good chance to earn more great profit if there's more good developments will happen with Bitcoin in future.
It's a big mistake to sell your Bitcoin with intention of buying them at low later. People who follow such strategy never get good return because there goal is to get few buck profit and that's it. Those who are holding Bitcoin for long term need not to worry about ups and downs of Bitcoin because the price will eventually go up.
If we compare Bitcoin spot price with 200 WMA then spot price is very much above 200 WMA. Bitcoin spot price is 110$k while 200 WMA is almost 52$k, which means Bitcoin spot price is almost double of 200 WMA. Even if Bitcoin spot price went down half of its current value even then it won't go below 200 WMA. This is an example of how much profit you can earn if you continue to hold bitcoin for long duration.