The instance is called lemmygrad.ml and already blocked by most of the other instances. You can see blocked instances if you scroll down the page and click on the Instances button.
196 is the subreddit that this community is based on. The only official rules are that you must post before you leave and you can't be a bigot. It ends up basically like r/shitposting, except aggressively pro-LGBTQ instead of anti.
A tankie is a leftist who thinks that Mao, Stalin, and Castro were cool.
A 196 is a meme sharing forum with the name 196.
I don't really know how to describe a tankie, but something like: a leftist person who glorifies autocracy and the use of force to make a leftist utopia.
«tankie» is a term used to describe communists who support or are critically supportive of so-called "authoritarian regimes" (AES (actual existing socialism) such as Cuba, the USSR, China, Vietnam, the DPRK, Laos, etc.) or their actions.