You can easily spot a shitcoin project if it just added because of the trend or hype especially for memecoins. If team is hidden amd of course the value and significance of the project in the first place. If all these are present, then it will be dead project for sure
I think they can get away with the hidden team, they can simply an excuse of anonymity in crypto. However, if the project has no used case, no whitepaper or if they have whitepaper but it's obvious that they just copied it.
And then the website are poorly written, I mean the design is so cheap that even a 10 year old can do and put up that website in a matter of minutes. And if by chance they have released the proper, then what follows is just pump and dump and the hyping on it whichever way they can.