I've some concerns and queries, i observed that many altcoins even some major coins create fake volume, if a project is new and initially listed on a small exchange and create fake volume it's obvious understood that they're trying to get listed on coinmarketcap, but A coin which is existed in everywhere, even big exchanges but still they create fake volume on small exchanges, what this means? Why they do that? Is everything just done by exchanges or project itself, and also that makes a clear difference in prices as compared to official price of market that makes frustrated.
Fake volumes are done by both the project itself and the exchanges. For the exchanges, this is obviously for the reason that investors or traders are drawn toward their platform because coins are being traded with high volumes, meaning there is sufficient liquidity. Traders always prefer to trade with coins and exchanges that give them smooth flow, with their orders easily filled. As for the projects, they are basically trying to send an image to the public that they are trusted and investors are interested in them as being reflected by the volumes of their coins.