This is nice question. Crypto is volatile, the price of coins increases and decreases, so those who trade, think that they can easily profit by buying a coin at a low price and selling it at a high price. This is a common idea that makes them weak in trading. And when they go to trade, they sell their coins out of fear of seeing the market movement. And in this way they also lose a lot but they cannot give up trading because they have also seen that when they sell their coins, the price of that coin increases again. This starts to build confidence in them again and they continue trading. This is seen in all traders, so I would definitely say that trading is addictive.