Before Facebook Inc. shut down a rapidly growing "Stop the Steal" Facebook Group on Thursday, the forum featured calls for members to ready their weapons should President Donald Trump lose his bid to remain in the White House.

In disabling the group after coverage by Reuters and other news organizations, Facebook cited the forum's efforts to delegitimize the election process and "worrying calls for violence from some members."

Such rhetoric was not uncommon in the run-up to the election in Facebook Groups, a key booster of engagement for the world's biggest social network, but it did not always get the same treatment.