For all we know he could of taken profit a long time ago.
His last post was made on June 01, 2014, this was his post,
I am back Smiley Been busy doing other things since I sold my house for bitcoin, and haven't really been following the price that closely. I check every so often and lo and behold it is back to $660+ right now!!!!!!! Well it looks like my $400K investment is going to make me a millionaire very soon. Now back to what I was doing... enjoying life.
By the looks of his profile, he was last active today:
Last Active: October 14, 2014, 07:13:17 PM
I have to say, I am pulling for the guy, you'd think anyone would who isn't a complete ass hole. No one want to see a guy lose all of an investment. Might not have been a great idea to sink it all into bitcoin, but to each their own.