I'm not sure about that it depends on the project, if you really wanted into it better read whitepaper, their website and backround of the team and ofcourse. There mission and vision of the project.
There are tens of thousands of coins if you count all the eth tokens as well, look at coinmarketcap and how many coins have a decent market cap. It's obvious at least more than half of coins releasing daily are scams.
Especially when you look at their charts and see they were pumped and dumped in their beginning.