And? Thoughts?
He chose the arrow that shows the directions in the airport, that is a message that he is air specifically, I like his logo, i think it says a lot about his blog, IMO it's nicely made.
DD cannot copy his style, I would say a combination of TPG and SD would be the best style, since DD is a mix of both, SD didn't change the logo when they redesigned, TPG did, DD likely will change the logo, I like @itsyehuda's idea to make the logo with the word Dan in it, in this case we would need 2 similar designs, one for the symbol and the second for the website header, when you have a symbol it can come in use a lot in making designs within the website and forums.
TPG did not make a symbol just logo for his company and modernized the website