The ABC is learning the perils of Facebook the hard way after two posts - one anti-Semitic, the other anti-American - attracted reader complaints.
Both posts appeared on ABC News's Facebook page, which is one of 124 that the ABC lists as official Facebook pages.
An ABC spokeswoman was unable to give any further details of where it was posted and for how long it remained on there before a reader complained.
But it was an ABC staffer who posted the second comment that attacked US foreign policy and provoked a stream of subsequent comments attacking the post.
"Today [US President Barack] Obama has issued a warning to the [Syrian] Assad regime that it will be held accountable by the international community for using its deadly weapons. When was the last time the US Govt was held accountable for using its deadly weapons?" the post read.
The ABC's internal complaints panel said it was inconsistent with editorial standards and implied the ABC had an editorial position on a contentious political issue.
ABC News's Facebook page has 27,900 followers and those who commented on the second post were contacted by the ABC to tell them it had been removed, unlike those who commented on the anti-Semitic posting, who weren't contacted.
An ABC spokeswoman said that it was "constantly reviewing" its social media policy and that a group of 11 people met to discuss the issue regularly. "But we think the benefits of engaging with the audience outweigh the risks and the downsides that you get when one of thousands of comments get through," she said.
Comments on Facebook are moderated only after they are posted, unlike comments on mainstream news websites which are filtered and then posted.
More than 11 million Australians use Facebook, half of them more than once a day.
The ABC's internal complaints team investigated 906 complaints from the beginning of April to the end of June, up from 738 in the previous quarter.