I often read news about a crypto being delisted. Not only on cheap coins that are not well-known or only have a small market cap, but delisting also occurs on large coins such as ADA, MATIC and SOL, on several exchanges such as eToro and Robinhood. Of course, the delisting of a crypto will have a very significant impact on the crypto, such as a price drop, a drastic drop in market cap, etc. So in your opinion, what are the factors that cause a crypto to be delisted from an exchange?