Regarding transferring income, it is as much as person traders to decide whilst and how regularly to transfer their income to their wallets. Some buyers prefer to transfer income daily or weekly, at the same time as others might also pick to leave income at the alternate and use them for further buying and selling. It is essential to weigh the dangers and advantages of leaving profits at the exchange versus transferring them to a steady wallet.
That's what I mean and everyone should consider security in trading and keeping their assets in a safe place. The point is that a centralized exchange is not a safe depository for assets for the long term, but we still need it to trade, let alone talk to day traders who are actively trading.
Finally it is up to the individual how the pattern he wants to implement, whether sending profits every week or having some other pattern which is much more secure, most importantly we must remember that any centralized exchange is not safe to store assets, even though they have complete security features.
Why leaving your asset on a centralized exchange for a long time? That is not right because of hack issue. As a trader, I noticed that I keep stable coin most of the time. If you have stable coin, you can withdraw as low as $0 to $0.3 on many exchanges. If you want to trade, you open a position. After you close the position opened, you can move your money back to a noncustodial wallet.
Nothing justifies that and if you can understand what I'm trying to convey, it is impossible for an active day trader to move and deposit money into noncustodial wallets and to centralized exchanges in trading every time they want to trade as this requires transfer fees. You will find it difficult if after trading you move assets to a wallet without custody and when you want to trade send them to the exchange, just imagine if you were a trader who is active every day and how you get around transaction fees.
That's why I say you have to have a pattern of trading on a centralized exchange, for example when you reach $10,000 you will send your profit to a non-custodial wallet and the rest is left to trade as usual, but still monitor the exchange regularly at least if something happens you can be notified regarding the stock exchange.