Here's the history of this comm.

~14 years ago - There's a subreddit called "r/shitliberalssay". It's a communist subreddit to criticize things that liberals say on social media. It still exists today and it mostly has social media screenshots.

~10 years ago - Chapo Trap House podcast was formed

~6 years ago - r/chapotraphouse was banned and hexbear was formed. A user asked for a comm called "ShitReactionariesSay" and the mod created a comm called the_dunk_tank. I think this means the comm was intended to replicated the functionality of r/shitliberalssays. I believe the word dunk was chosen because many hexbears came from twitter where dunk mean to humiliate, in reference to basketball dunking

~2 years ago - There was an argument about whether screenshots of lemmy users from other instances were allowed to be posted in the_dunk_tank. It was called "Rule 8", you'll notice that slop only has 7 rules. Then "the_dredge_tank" was created to allow users to continue mocking screenshots of other lemmy instances.

<2 years ago - The Dunk Tank and The Dredge Tank were closed because the concept of the a "dunk tank" originates from racist Jim Crow era. Though I think many people interpreted the name as the basketball term "dunk". In place of these comms, two new comms formed: "gossip" and "slop".

9 months ago - The gossip comm is shut down and considered to be merged into the slop comm.

With that history in mind, I think this comm should resemble the content of /r/shitliberalssay, that is criticizing screenshots of people saying anti-communist things on social media. I don't that subreddit even allows posts that aren't images.