Discord scams are rather easy to notice - if you have heard of them before.
What is harder to spot is fake projects. They sometimes slip through and get unoticed or rather unreported. Sometimes for weeks, sometimes months. Ironically scams have to face the same hardship all the real devs have to face. Too few visitors. And as with ratings, like most people do not rate, most people also do not hit the report button at the bottom of the page.
So basically it is like a minefield. I have even seen scams where they impersonate publishers that are on itch. Or were. Hard to thell, if there is occasional deindexing R-82637 was such a case.
And it is rather erratic how long it takes to remove the fake projects. I understand that there should not be information given that the scammers could react to. And that there are different stages of removal.