Aggregator sites like coinmarketcap and livecoinwatch often show trends of greatest gainers/losers of the day/week/month/year. However, coins with almost dead marketcaps are prone to manipulation.
Why don't these sites remove such coins?
Maybe we should report to coinmarketcap !? if the coin is dead.
Some coins they remove with time. What criteria for delisting I do not know. For listing on the CMC should be 50K per day, but after that these are not traded and 10K per day. We can use of manipulation. For example, if we see that the price has increased dramatically in one or several days by 100+%, then we can play in a short if this coin|token on a centralized exchange.
I got this information, for listing at Coinmarketcap which now no longer requires trading volume.
right or not I don't know.