I think it is not always easy to determine which project is good. If investors do not take care of the project and do not maintain liquidity, it will be difficult to save the token from the dump. Much depends on token liquidity .
That depends on the how much demand that will generate volume on exchange site. you need a lot of order buy to prevent the dump that created from the sell order. volume is the only correct answer to prevent this dump. that's why most of the good platforms applied major exchange for its first listing.