Civil War banners
Origin
Marvel had a Civil War marketing campaign that sucked and everyone lampooned it. [Citation Needed]
Significance
Mocking comicbooks, particularly comicbook 'events', is excellent parody fodder. Many SDN users still use these banners.
Stupid People
Frequently, new and lazy users will ask what these banners/references mean, rather than reading the FAQs.
This includes:
Darth Ruinus, 6/11/2007
--Stark 02:11, 6 November 2007 (EST)