i doubt marketing is a great idea dealing with icos now people suffer seriosly fom ico spam nowadays with basically 50k icos out there
On the other hand, it's because there are 50k ICOs out there that marketing is even more important... but you're right of course. I'm not sure traditional marketing has ever worked, I'm not sure if the ICO marketing tricks/tips will continue to work. Everything was taking advantage of new money for so long, that saturation has been achieved.
Good guide, in that sense (minus several typos), I think the Post ICO section especially is something projects completely neglect.
But end of the day... you do things the current way, you're going to get the current results.