Lurk moar = just observe and learn over time. It takes time to understand these things if you are not used to anon culture.
We are not here to announce ourselves, we are here to share and disseminate information. This place is not about us, it is about the information. Human beings are emotionally weak to showing identities and connect certain traits to those identities. Anon culture is about circumventing those weaknesses and be clear without the need to show off or whatever the emotional need may be. Or, at least minimize those processes.