It is not a violation to post an article on your website from another source so long as you provide a link back to the original article and give credit to the writer/news source. I know this because I went to school for journalism and there are several thousand websites that do this.
If you disagree with me, please forward me this law in its entire context. Everyone here seems to be a Monday Morning lawyer, saying this is a law, that's a law, etc. but we have nothing to prove it.
DavidS is right. I work for a media company and do ample work ensuring repurposed materials meet copyright law and avoid any infringement, as such I've become quite familiar with copyright law.
Posting an article on a message board in its entirety with a link and note of the author of the original piece is not in any way an infringement of the law. Whoever has implemented the policy is simply mistaken about what the law states.
Posting a book or a full-length movie or something like that would be a problem, but even a long journal article sourced and attributed to promote discussion is not against any law and is common practice on the internet.
The "you can just post the first few paragraphs and anyone interested can click the link" is true and fair enough and I understand the principle of covering your ass just to be sure so if you continue to implement it as a forum policy that's fine, you should just be aware that what's being enforced is not the law but a misinterpretation of the law.
Assuming the cited text is cited to promote commentary, it falls under fair use. (
United States Code: Title 17,107. Limitations on exclusive rights: Fair use | LII / Legal Information Institute ). This is particularly true given that it's being used for non-commercial purposes (no one is charging for access to the article on this site), and it will not significantly depreciate the value of the original work (we're not The Pirate Bay or anything like it and people will not flock here to read articles, or even know to, rather than the site they were originally published).
Regularly republishing articles in their entirety from a site that requires a paid membership or has a pay-per-article policy might get you in trouble, but reposting an entire article from most news websites,
with proper citation and on a discussion board for the purpose of commentary, is 100% legal.
See:
United States Code: Title 17,CHAPTER 1—SUBJECT MATTER AND SCOPE OF COPYRIGHT | LII / Legal Information Institute , 106 through 122 establish the legal boundaries of fair use which posting here for commentary clearly meets.