Choosing and buying Coin means that it carries its own risk, of course it will be a high risk if you buy a lot, it is low if you buy a small amount. It is likely that pump and dump will continue to occur at all altcoins. And of course all project altcoins will target low-risk names to attract buyers' attention, and that is a common and natural thing. So you have to be careful with the coin of your choice and look for coins that already have a strong reputation and community.