8chan—pronounced “infinitychan”by its users—has one primary slogan: “Embrace infamy.” And the message board has more than lived up to its motto.

For years, it’s been the go-to place for extremist ideologues to chat anonymously with one another, a Wild West of the Internet with its own jargon and a fleet of atomized, angry users from around the world who sought common ground in a place that shunned censorship of any kind. And over the past six months, three separate far-right mass shooters used 8chan to publicize their actions beforehand, posting manifestos, video links, and playlists to augment the experience for their ideological comrades. When Brenton Tarrant posted a live-stream of himself murdering 51 people in Christchurch, New Zealand, on 8chan, he received near-universal praise from its users, several of whom hoped that he would rack up a “high score” of deaths. In total, the terror attacks by gunmen who posted manifestoes to 8chan have resulted in a death toll of 71 since March.

After the latest such incident—a terrifying attack on Hispanics in El Paso that killed 22 and injured 26 more—tech companies that work hard to purvey an image of neutrality felt forced to act, and on Sunday, Web security provider Cloudflare dropped 8chan as a client. Cloudflare provides protection for websites against DDos (denial-of-service) attacks, which flood sites and render them unusable. “8chan has repeatedly proven itself to be a cesspool of hate,” wrote Cloudflare CEO Matthew Prince. “We just sent notice that we are terminating 8chan as a customer effective at midnight tonight Pacific Time. The rationale is simple: they have proven themselves to be lawless and that lawlessness has caused multiple tragic deaths.”

8chan was originally launched as an offshoot of 4chan, an older but similarly oriented “Wild West” message board that remains a congregation point for Internet users enamored of racial slurs, political violence, and animé porn. (A quick glance at 4chan’s /pol/ board, the place for its users to post about politics, this morning revealed multiple posts of Nazi flags, uses of the N-word, and praise of Croatia as a “Christian white ethnostate.”) As extreme as 4chan was and remains, 8chan was built to house users that couldn’t tolerate even the barest of moderation. The split occurred during the Internet-wide, misogynist cataclysm now known as GamerGate.

That “movement”—a loosely organized collective of Internet trolls, some anonymous, others emergent ideologues—began as retribution, after Eron Gjoni, a then-24-year-old man, posted a 10,000-word diatribe about the alleged infidelities of his ex-girlfriend, a 26-year-old indie video-game developer named Zoë Quinn. Among his allegations were that she had slept with a video-games writer in exchange for favorable coverage. The screed spread wildly among self-identified gamers. Its immediate repercussions were the vicious harassment of Quinn—who received a cascade of death threats; had her accounts hacked; and had her personal information, including her address, posted online, causing her to leave her home in fear for her safety. The movement soon metastasized, taking the false allegation that Quinn had traded sex for favorable coverage to signal an industry-wide crisis in “ethics in games journalism.”

Despite its occasional male targets, GamerGate never lost its misogynist rancor. Trolls learned to gamify their tactics, overwhelming selected targets with abuse or contacting en masse the ad sponsors of journalistic outlets who had the temerity to criticize them. As a 2017 report from the think tank Data & Society on GamerGate’s broader consequences for disinformation online put it: “Gamergate participants asserted that feminism—and progressive causes in general—are trying to stifle free speech, one of their most cherished values. This is a retrograde populist ideology which reacts violently to suggestions of white male privilege.”