brigade

To  brigade  or  brigading  is a coordinated effort by an online group to bully, manipulate, or harass an individual or another group online typically by mass commenting, reposting, and/or liking.

Recommendation: user-interface features which can enable and in particular amplify abuse-like brigading should generally be avoided in web interactions and designs.

Gamergate
"As Gamergate unfolded, Wetherell noticed its participants were using the retweet to “brigade,” or coordinate their attacks against their targets, disseminating misinformation and outrage at a pace that made it difficult to fight back. The retweet button propelled Gamergate, according to an analysis by the technologist and blogger Andy Baio. In his study of 316,669 Gamergate tweets sent over 72 hours, 217,384 were retweets, or about 69%.&mdash;The Man Who Built The Retweet: “We Handed A Loaded Weapon To 4-Year-Olds” via BuzzFeed News"

IndieWeb counter-examples

 * micro.blog creator has stated that he's designed his platform to specifically not have a repost/retweet functionality as a means of helping to prevent abuse.