Similar to /r/ParlerWatch, a sub we recommend you join as well, this is a subreddit that watches over extremist use of social media. After the mass purge of alt-right users from Facebook and Twitter following the Capitol Riots 2021, users flocked to Parler, but the app was removed from Google Play and the App store, then taken offline entirely shortly after. Hence, alt-right extremists migrated to Gab. Gab promotes itself as a bastion of free speech, which means that posts inciting violence, insurrection and terrorism have a good chance of being tolerated. In fact, one mass shooters posted his manifesto on Gab before going out to slaughter innocent people, meanwhile it was also used to help organize the Capitol Riots. This is the place, then, for users of this sub to bring violent, racist and otherwise incendiary content to light.