it seems that vdragon owns or owned an avalon,
maybe we can trace back via this way?

https://bitcointalk.org/index.php?topic=223875.msg2356609#msg2356609
https://bitcointalk.org/index.php?topic=154009.msg1635436#msg1635436

I assume the avalon owners are pretty limited and the company maybe can help tracing

Or via Pool owners, they maybe record ip addresses
https://bitcointalk.org/index.php?topic=192907.msg2030686#msg2030686