In 2017, keen investors saw the bullish market and invested in any ICO in sight.
Fast forward to 2018, and most of these ICOs are dead, dying, or a scam.

So, what is the difference beetween ICO 2017 and ICO 2018?
The main difference between these two are in ICO 2017 most ICO were legit and a lot of investors were in every ICO investing and making a huge profit afterwards of it. In ICO 2018, almost all of the ICOs were mainly scam and investors were afraid to invest anymore thats why raising a fund in ICO 2018 were really hard to achieve.