Children. Just to be clear, no one here is anonymous. Every time you post your IP address is hashed to create your unique UID. This UID makes you Pseudonymous, just like a wallet address on Bitcoin. Every time you post you can leak privacy information and meta data from the images you upload that can be eventually used to determine your actual ID. Even if you IP hop, you can still create patterns of data through privacy leaks that can be used to narrow down the list of possible identities.
NO ONE is anon here. Pseudoanon at best. But just like the block chain, the more (you) post, the more chain analysis can be used to ID each UID.