Post an address. There is a magic Monero fairy who likes to drop coins in random addresses that get posted. 
Hm. My disapproval of address reuse in Bitcoin land caused me to pull the tip address from my sig I only have a bitcoin address on my profile at all for mod payments, and I rotate that manually every time it gets paid. ... but since all BCN/MRO/etc. addresses are ECDH negotiated, my issue there is resolved hurray!