> And as a counterpoint, Snap has not crossed the chasm, despite a $25b IPO.

I think it is a bit too early to call this one. I'd rather give Evan Spiegel and his team a few more quarters to see what they've got in store against Facebook now with IPO money in the bank.

> And arguably, neither has Twitter, despite over $2bn in revenue and being public for years.

Granted you qualified your statement with "arguably", but why do you think this when there is no corollary for "tweeting" outside of Twitter's service? If Twitter goes belly up today, who will step in their place?