Don't just join or invest in ICO from those ICO platforms and websites, make sure you do good research first because I've stopped using ICO websites to look for project, most are still scam projects in the end, I prefer projects from top exchanges, they are more safer
I guess if he was asking about the legit site that has low probability to listing the crap coins. I remember the scam ico list site like icobench and that site is dead right now.
it's not all of icos were scam and did you see that how this ico gives investors very big profit?
https://coinmarketcap.com/currencies/flow/You will see 5k ROI on CMC. That's crazy.