One of the instance that is promoted on join-lemmy.org is burggit.moe that is defined as “NSFW & Loli/Shota/Cub friendly”. Loli is legally considered as paedophilia in europe and the US, so even if it’s legal in the country that host the instance, I would suggest to not promote it as an instance to join
Of course you don’t see any problems. You don’t give a damn about moderating, you only care about militant rights of folks to say whatever the hell they want to say about anything regardless of the impact it has on anyone else.