There was a post on March 29th with an address of 19wAGPypBu61s28k1hRx5nF6EZMTfMiF5b with my name on it. I will send any moderator bitcoins from that address to prove my identity
You could just cryptographically signe a message with that address to prove ownership, no need to send coins of yours!
bitcoin-qt has this option, it's easy to use.