The sidebar is full of links and the user has zero posts.
Communities
https://lemmy.world/c/sdfsgsdgsdhg https://lemmy.world/c/dfhdkjfdgfdhg https://lemmy.world/c/amnbjsdgsg
Users
https://lemmy.world/u/carolinamobe https://lemmy.world/u/nilssyacaloni https://lemmy.world/u/susuganan
The all feed. They knew mods in communities were removing their spam posts, so they created communities they could post constantly to and all viewers would see them