I just know that users from lemmy.world post stupid stuff to me on a pretty regular basis. I'm not aware of any lack of moderation that means that the stupid stuff goes unchecked, except from lemmy.world, as well lemmy.ml, Hexbear, and the like. The flavor is different but the distastefulness is consistent.
I saw the response from sunaurus, which matches my experience.
@sunaurus@lemm.ee please consider this a report for defamation. I doubt that there are any pedophiles among the admins of lemmy.world, and if there are, I don’t think “I got over it” is a good response when asked about details. I think this is of a piece with this post, just a bad-faith attempt to cause strife for apparently no reason at all.