Earlier quoted context omitted.
"I feel like being "that guy", and saying that this is going to fail. It's not going to gain traction, and will not be profitable or popular in the future." ... "However, I can definitely see this gaining traction." eh?
I think his point is that he would love to be the naysayer, play devil's advocate, but in this case believes the product will survive despite a tendency to view social networks cynically.
ah, that makes sense. My mistake.