I am active on many exchanges and I see coins that are manipulated almost daily. The more the exchange list more coins, the more you will see more manipulations.
Also most low marketcap coins are very easy to manipulate and they are the ones that the manipulators mostly visit. Those slightly high and high marketcap coins are still not completely resistant to manipulations but low marketcap coins are the riskiest.
That is in line with the making of several coins because that's how they do manipulation for certain interests and are generally carried out on coins that do not have more fundamental quality.
They have been around for a long time but some of us do not recognize and maybe slowly this kind of thing began to be seen clearly because people began to pay attention to the quality of coins.
Do not rush to decide to buy or sell it because it is necessary to make a comprehensive study because otherwise we will get unwanted losses.
Manipulation is the best way to achieve the desired target and if we are not aware of this then will be trapped in coins that do not have a fundamental level.
In the end, someone will experience losses in the process of purchasing certain coins that do not have good fundamentals in the market.