Imagine how much success the people who try to pull wartime scams on people would make if they simply joined the art community and collected that success as artists. Like at https://archive.ph/FDMos (I notice they are accustomed to the fact people won’t pay attention to how the content they are showing is AI/props, as shown by the recurring figures/text and the fact one of the panoramic views doesn’t hold together).
Maybe, just maybe, if you don’t have any idea how any of this shit works you shouldn’t run off half cocked sounding alarm bells?
Each Lemmy site (instance) is a separate thing with its own admins. Underneath each instance, there are multiple communities, each with their own moderators.
Admins decide instance wide rules, and decide which other Lemmy instances they wish to federate with (host content from). Moderators decide on any additional rules within their own communities.
So… go to that post you linked to, use the report button. It will send a report to the community moderators, the admins of the instance it was posted on, and the admins of your own instance.