No one, not even satoshi can predict what the price will be next month, you can guess with events that will before that could either affect its price positively or negatively.
someone's prediction or analysis is sometimes wrong and not always right, so someone just takes the wrong action because they only do it with their thoughts, don't know what the value of Bitcoin is in the future.
no one can know the value of coins in the future so they can only hope and try their best, their value can change in the Crypto market and that is common in the market.