Sometimes, when contentious discussions take off, they publish pornographic images to goose engagement with their own posts and distract users from more relevant conversations.
The raids were reportedly related to alleged payments by Trump's personal lawyer and longtime fixer, Michael Cohen, to the pornographic film actor Stephanie Cliford, who performs as Stormy Daniels.
Among them were half a dozen of pornographic intent and plainly of American origin, though the makers had modestly omitted both their names and the form for mailing.
An NC-17 movie is not a pornographic movie, but it might contain enough sex or violence that it would not be appropriate for anyone under the age of 18.