1. Why are some very good coins delisted from exchanges? ANT is the leader of DAO. I dare not buy Altcoin anymore, fearing that Magic will be delisted from exchanges.
Now I don’t care too much whether the exchange lists the currency or not.
In the early years, information was seriously asymmetric, and the main source of information for ordinary retail investors to learn about a coin was probably the exchange. In that era, the listing of a coin on an exchange might have a strong boosting effect on the price of a coin.
But now, I think this information asymmetry has been weakened a lot, and more and more retail investors get first-hand information through social media.
This source of information is far stronger than the exchange.
Moreover, there have been many cases that show that when an exchange lists a new coin, that coin has already experienced a considerable surge in price in the early stages.
So now listing a coin on an exchange does have an impact on the price of a coin, but it is far less significant than before.
In addition, the level of coins selected by exchanges now is far lower than before in my opinion. They seem to care more about whether a coin can bring short-term traffic rather than whether a coin has long-term development potential.
If we look at a coin from a longer-term perspective, the most fundamental factor in determining its long-term trend is its fundamentals and team building. If its fundamentals are good and the team continues to work hard to build it, all those that are not listed will be listed. If its fundamentals are not good and the team building is not strong, it will eventually be abandoned even if it is listed.
Speaking of ANT, I bought this coin very early, but later sold it all. The main reason is that DAO has not made any progress in recent years, and it seems that there is no direction in the foreseeable future. So it may be too early to talk about this track now.
As for Magic, I still have it. At least I don't see any serious problems with it at the moment.
2. Is there any problem with frequently using USDT and USDC on ARB?
I assume that the "is there a problem" here refers to "is it technically safe".
If we understand it from this perspective, I think they are definitely not as secure as USDT and USDC issued on Ethereum.
This is determined by the security of the chain.
ARB is a second-layer extension of Ethereum. In theory, all transactions on ARB must be verified on Ethereum before they can be finally confirmed. Therefore, if a USDT or USDC transfer is not finally confirmed on Ethereum, then the transfer may be rolled back/cancelled in theory.
In addition, ARB’s current operations are frankly still very centralized, and its security is actually completely dependent on Ethereum, with almost no particularly strong security guarantees of its own.
That is to say, once a major problem occurs in the team (or the sorter), the entire chain will be ruined. At that time, not to mention the USDT and USDC issued on it, all the assets issued on it will be ruined.
This is not only a problem for ARB, but also a problem for almost all Ethereum Layer 2 expansions at present.
Because of this, the industry’s calls for decentralized Ethereum’s second-layer expansion have always been one after another, with each wave higher than the last.
Among these second-layer extensions, at present, only Metis is making great strides towards decentralization.
But then again, ARB has been used for so long, and it seems that no one is serious about these security details. Moreover, USDT and USDC seem to have begun to frequently and widely issue native tokens on various second-layer extensions of Ethereum (non-Ethereum cross-chain), so it seems that no one cares about the potential security risks of ARB and a number of well-known second-layer extensions.
Regardless of whether others care or not, I still think it is important to be careful. Try to use stablecoins issued on Ethereum. For tokens on the second-layer extension, if the security requirements are not so high, you don’t need to worry too much.
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