Some of the new projects listed are actually pumped by the exchange's reputation system but through that to see the worthiness of these projects is honestly too difficult because this is also just the result of a reasonable marketing process, good brands will launch a successful opening day but then to keep customers coming back is about quality and reliability and to have a good experience, it's features, facilities and roles as well as care team. Many projects are rated one star after only one day of opening because of such problems
I have literally worked with exchanges to increase volumes and attention of certain coins before. Thankfully 2 of those exchanges are gone now, it is sad that they are gone because they took people's money with them but at least they can't scam anyone else from now on, and I feel like a bad person for doing it but I was working on the coin side and not exchange side, which means that my job was only regarding our crypto currency and had nothing to do with overall exchange so I had no idea they would scam anyone, even people who worked in the company didn't know they would, it was just CEO that did it and maybe few others who knows.
There are "volume bots" everywhere, even in binance, all they do is increase the volume of the coin you want, they buy and sell from each other, pay a big fee for it, but at the end it looks like you have a big volume when you actually don't.