I guess his point is that everyone should really DYOR and not just to buy the hype of an altcoin that will turned out to be shitcoin and then there are people who just exited scam after a marketing hype.

He didn't name names here, but we all know that 90% of ICO's are being run by bad actors behind and they hide themselves by hiring marketing "experts" to promote their scam coins and even celebrities (remember Centra?)