the best way to choose ico is to read the whitepaper, team, and roadmap. You can also visit the ico rating website as your reference.
Don't rely on that website to give you the information that you need to invest in a coin. Read the Whitepaper.
Whitepaper is also very easy to counterfeit and often copied from other projects, even TRON has been accused of copying some documents from other whitepaper. Also whitepaper is just words, it is not the only thing to choose the project
I agree with you that white paper is just words that can be faked or stolen, so you need to pay special attention to such factors as the team and partners of the project. First of all, check whether the project has a real team or fakes, and do the same with partners. If the team is real then you need to make sure that it has experience, and whether the partners have an attitude towards the project.