Josh may or may not be involved with the hack, but his opportunistic claims of the Github and other accounts being compromised are straight out of his playbook - like when he impersonated an eBay employee on Reddit.
http://www.reddit.com/r/litecoinmining/comments/1yh23g/has_anyone_here_sold_their_own_rig_on_ebay_and/cfv4v14