180

180 is a number used to reference the fact that the censorship of the FlR5T D4TE in the paper was pointless, as the paper has a daily readership around 180,000.

It is used moreso just to mock the censorship of it, basically saying, 'You got my copy, but [180,000] have it, so it's not disappeared."

180, Explained
 180  was invented as a confidential inside joke, after people in charge confiscated copies of an embarrassing story concerning a fellow high-up and tried to censor any discussion about the topic. It then became mainstream after it was confidentially explained to a small group of people who were some of the first to know about the matter before it spread like wildfire and the censorship began.

Why 180? All of the people in charge were trying to censor this information, even though it was featured in the public domain of the newspaper, the man in the article consented to it enough to agree and go in person to a place for it, and more. At the time of confiscation, Special Agent Silverpistol [Real Name Redacted For Legal Reasons], estimated that the average readership of the newspaper from which the content originated  was 180,000 . Thus, 180 was born.

It turns out that the actual readership for the weekend edition of the newspaper edition is much higher: nearly 400,000 copies of the weekend edition are sold on a Saturday. But 180 just works, so it stays.

It even developed its own official choreographed dance, in which a person quickly performs a 180° turn or even just says '180', 'do a 180' or something else like that, to imply it, followed by some laughs. While it seems like something that will die out soon, it's going pretty strong right now amongst Silverpistol and his closest of mates.