I just realized an interesting thing about how people misunderstand centralized CEX and decentralized DEX. In fact, they operate based on two completely different logics, but are often compared as if they are on the same level.

Let's start with CEX. These are exchanges where you have to register, complete KYC, and then deposit funds. The advantage is super-fast trading, abundant liquidity, and user-friendly interfaces. They offer customer support when issues arise. But the obvious downside is that your money is in their hands, not in your own wallet. If the exchange gets hacked or goes bankrupt (like what has happened), you lose everything. Additionally, CEXs must comply with laws, so regulatory authorities can restrict your access depending on your country.

In contrast, DEXs are entirely different. These are blockchain-based exchanges, with no control by anyone, and no KYC required. You interact through smart contracts, and your funds always stay in your personal wallet. This means higher security, with no central point for hackers to attack. But, in return, transactions are slower because they need blockchain confirmations, liquidity is lower, and the interface is more complex. Most importantly, there’s no support team—if you make a mistake, you bear the consequences yourself.

I find the recent debate about whether DEXs should list all tokens quite interesting. Some argue that listing all tokens on DEXs is good because it’s permissionless—anyone can create liquidity. Big projects often start small, unnoticed by large exchanges. On DEXs, you are responsible—if you buy junk tokens, it’s because you didn’t research properly.

As for CEXs, listing all tokens isn’t a good idea. Large exchanges have to be very strict due to legal reasons. If they list a scam project, they could face lawsuits from users and pressure from regulators. Plus, listing too many junk tokens can lead to price manipulation. Each token listing also requires technical resources and support staff—listing everything is impossible.

In reality, DEXs and CEXs serve different roles in the ecosystem. DEXs are incubators, where anyone can create, but you must take responsibility. CEXs provide convenience, liquidity, and some legal protections. They are not neutral channels—CEXs hold your funds like a bank, so they have a duty to protect you from scams and comply with anti-money laundering regulations.

So, which one to choose? If you’re new and want easy trading with high liquidity → CEX is the way. If you care about security and privacy → DEX is better. Or you can combine both—use CEX for quick trades and DEX for safe storage.

But whatever you choose, the most important thing is to understand how they work, manage risks well, and protect your assets. Crypto is still a field without clear regulations, so you need to be cautious.