You have got the last characters wrong, see my messages below for the correct link. But there is no useful content in the imgur link because the person who made the image messed up and truncated their message.
As for the "promote release" Bitcoin account, somebody posted the ASCII string 'prove it' (I'm repeating what I said below since this thread shows up at the top).
You're absolutely right about the truncation, the text is exactly 160 characters long, and the QR code generator used silently truncates the clipboard contents, so that it's very likely that the person was unaware that some characters were missing.
Any volunteers for sending a Bitcoin message to tell these guys that they messed up? :-)
This PNG image is a QR code, which decodes to the string '01101000011101000111010001110000001110100010111100101111011010010010111001101001
01101101011001110111010101110010001011100110001101101111011011010010111101101001' (newline added for layout, not actually present).
This, in turn, is a binary ASCII encoding of the string 'http://i.imgur.com/i. But that's a 404 page, so this whole thing seems a bit futile.
FWIW, the PNG file coincides exactly with the one generated by http://qrcode.kaywa.com/ for the binary string.
As for the "promote release" Bitcoin account, somebody posted the ASCII string 'prove it' (I'm repeating what I said below since this thread shows up at the top).