Mashable reports that Pornhub says traffic is up-- way up.
When compared to traffic levels prior to shut-down, weekday visits to watch adult videos were up 5.94% from January 7th to 11th, and the site's peak traffic hours are usually 1 p.m. to Midnight, but after the shutdown began, late-night traffic increased 14 percent, and early morning traffic from 9 a.m. to 10 a.m. saw the smallest change.
More here.