Lemmygrad (under the domain lemmygrad.ml) is an ultra-Dengist and third-worldist hate forum. Founded in 2020, it is based off Lemmy open-source software. Although the forum was initially one of the largest Lemmy instances, it has since become one of the most fringe, with less than 50 regular users and maintaining even less moderators than when it was founded.
The presence of this extremist instance has resulted in criticism from users of other Lemmy instances, particularly in consideration of the fact that the founder of Lemmy software moderates the instance with an alternative account. Because of Lemmygrad's hateful rhetoric against Westerners (and fanatical glorification of Russo-Chinese capitalism and imperialism), it is largely seen as fringe, with even other communist users regularly being banned for expressing views in contradiction to the ultra-revisionist line of the moderator clique.
The site effectively maintains a front-organization, ProleWiki, with the administrators on that site also being moderators on Lemmygrad. Obviously suggesting a relationship.