What you should know is that positions traders monitor the markets and keep adjusting their position as new information flows into the market.
You are wrong, they don't always adjust their position, a position trader can only do that if may their liquidation price is getting near to their least expected zone. Some of them will not even adjust the trade at all but would rather deposit more funds into their account to avoid liquidation but from what I just learned a few days ago, which I already stated above. If a position trader have a large amount in their account, when they enter a position even with 20x leverage, the liquidation price is usually very far. Someone has $4k+ in their account but took a BTCUSDT Long position size of just $200 and their liquidation price for that trade is when Bitcoin drop to $8k+. I
Is it possible for BTC to drop to $8k anytime soon? It means that even if BTC remains in $40k zone for 8 years, he will just hold that position for that long.