Yes. I agree with you. Most altcoins are scams, and scams! Therefore, it is necessary to conduct a thorough analysis of ico projects.
Scams are usually profiting from people that don't read into a project. Reading the project then investing goes far.
A lot of people investing after reading the column "gainers and loosers" on coinmarketcap. To read and research is too difficult, they are here for quick and easy money.