In this altcoin sector, I prefer to call them air coins, because sometimes they are invisible and intangible, and sometimes they disappear without you being able to track them.
I sorted them into categories: mainstream altcoins, non-mainstream altcoins, and junk coins.
What are altcoins? The following link is very detailed, you can refer to it for comparison.
https://www.investopedia.com/terms/a/altcoin.aspMainstream altcoins have different functions, different founding teams, and have a strong trust endorsement, a strong technical team, giving us enough confidence, I can accept it, for example, Ethereum, Monero, Litecoin, etc. . Non-mainstream digital currencies also have a relatively strong trust endorsement, especially the founders who dare to innovate continuously on the basis of Bitcoin, especially in the field of DEFI and NFT, which are also acceptable by many people, such as UNI, SUSHI , FTM, CRV, etc. The rubbish coin is pure violent marketing. There is no well-known team, no economic model, and pure plagiarism. Some will not give you tokens, and some will just run away. The entire publicity process is simple and rude, with one purpose: please Add bitcoin to my wallet address.
Has everyone been deceived by altcoins again? Please report them and tell more people not to invest