GNT pumped right after this report was published, so i believe it is based on his followers trying to get the jump rather than anyone having inside information about the coin that will be mentioned tomorrow.
If you've noticed, several other coins have pumped based on speculation. Many of these have subsequently dumped when more information has come out. I read the techinsider report and he may be correct but I felt some of the information was incorrect in how he came to his conclusion. Not saying he manipulated emails/notifications at all, but he was gathering data around the web and i believe came across one that was simply inaccurate so he based his assumption off of this.
I guess you will find out tomorrow night. Best of luck
