Here to get few reasons why we trade and of course many of us here would say they trade to double their money and if that then it would be very hard for us to succeed in trading. Just as what most people says they gamble to make additional profits or to have double stream of income but at later ends turning very bad at them were they suddenly became addicted gambler.
Don't you think a trader can as well become addicted?
My straight answer is to get profit in doing trade, there is no other reason, it is the same in the traditional way of business, that's why they are called traders, right? You buy at a low price and then you sell at a high price, that's the simple cycle of trading whether crypto, stockmarket, forex and so on.
Now your question is is it addictive? maybe it's addictive to trade if most of the time you get profit from it, of course you will repeat the strategy you are doing because you know that something will be blessed or expected, don't trade if you hesitate.