What's the legal age of consent for appearing in pornography? Eighteen. 18 USC 2257 and 18 USC 2251, both Federal laws, explain what can and cannot be posted VERY CLEARLY, and specify criminal penalties for violations. If you post pictures of minors engaged in sexual poses, nude or non-nude, you can be arrested on child pornography and/or exploitation charges as a secondary producer, just like the scum who actually make it.
If the Feds come looking for you, it will be YOUR ass in trouble, not Motherless, If the Feds give Motherless a subpoena, admin has no choice but to provide your ISP and every picture/video that you've posted here. Motherless can be shut down if the Feds order it, but you're the one going to jail. No one cares if you think it's unfair- it is the law and has been upheld by the Supreme Court many times. People get arrested on child porn charges every day, and I guarantee none of them thought they'd get busted.
Google the statutes and read them yourself, then ask if posting a picture of a minor is worth 15-30 years.