People probably noticed that bitcoin is hard to move, as well as xrp and eth, all coins in the top 50 are probably very difficult to move because they all have high volumes. Nonetheless, they realised they could make some money if they get together and make moves on the small ones like the pump and dump scheme, they don't care about the coin itself, they don't care what happens to the families they leave behind, all they care about is their money.