When setting up an instance, please be as clear as possible about what kind of community you want to cultivate. Do you want to make it as safe as possible for your users and drastically limit federation if necessary? Are you fine with literally anything that isn't illegal? Somewhere in between? All of these communities can coexist and not get in each other's way if the boundaries are clearly set.
I'll probably make more accounts at some point for this reason. Sometimes I want to wander into the void that is everything wrong with the internet. Sometimes I want an unabashed safe space. Is that really so strange?