The phrase "attack posting" is correct and usable in written English.
It can be used to describe the act of posting aggressive or hostile comments online, often in forums or social media.
Example: "The forum was filled with attack posting, making it difficult for constructive discussions to take place."
Alternatives: "hostile commenting" or "aggressive posting".
Mr. Hilton went on the attack, posting tweets that said Ms. Moore was an inept mother.
One measure of American vexation came two weeks ago, when Yemeni newspapers published in Arabic and English began carrying a full-page appeal by the State Department, with a photograph of the Cole churning a foaming wake at sea before the attack, posting a $5 million reward "for information leading to the arrest or conviction of those persons who committed or aided in the attack on the U.S.S.
The hypernationalist group the Turkey Youth Union (TGB) claimed responsibility for the attack, posting photos of the incident on its Twitter page and website.
IS, through its affiliated Amaq news agency, claimed responsibility for the attack, posting pictures of five grinning young men, holding automatic weapons in front of a black flag, who the organization said were involved and have since been officially confirmed as the suspected gunmen.
Hshouma" – shame, multiple commentators wrote in Moroccan Arabic on accounts of the attack posted to Ms Abidar's Facebook page.
B5 The Aftermath TRANSFORMATION -- Fliers that relatives of people missing in the trade center attack posted in public places have been transformed into a kind of memorial.
The report on the hospital attack, posted on the Web site www.TamilNet.com, said the military fired two rounds of artillery that struck the hospital — the only remaining hospital in the battle zone, at Mullivaaykkaal.
Somalia's al-Qaida-linked rebel group, al-Shabab, which claimed responsibility for the attack, posted an audio message on a pro-militant website late Monday that they were still in control of the building.
Facebook, twenty-one miles south of the attack, posted the local ABC affiliate's feed in its Live Video section and launched a Crisis Response page where users could mark themselves safe.
Benjamin Cazenoves, a Frenchman inside the concert at the time of the attack posted to Twitter, describing "carnage" and "bodies everywhere".
According to screenshots of the attack posted online, victims' computers display a message telling victims they have three days to hand over the $300 in bitcoins.
