is there no way for theymos or other admin to find his new alias (from login IP or such thing)
and do something
(support or avert further damage)?
That is highly unlikely to happen.Yes,theymos does have access to Ip logs but he wouldn't share it without a legal notice or say without police getting involved.However,the IP logs wouldn't do much since Dave is a smartass and he would be hiding behind the VPN's.You can connect the dots or post your request in this thread
https://bitcointalk.org/index.php?topic=1702409.0 ,they'e good at finding aliases on the forum.