This looks like another BS hijacked account. Dude was dormant since 2011 and suddenly came back active last month.
so what ?
i did mining in in 2011 and 2012 but i was hacked with 90 BTC and 5 of my graphic cards burned out (fans stopped - to high temp)
and also the price went down so much that profit was only 10% from electrical costs, so i stopped fun with bitcoin and went to work
Now when the bitcoin went in price so much up i begin my adventure once again.
nothing suspicious.
i have mail in gmail.com with 2factor so my account isnt highjacked !