What? He didn't even vote for the Gulf War.
Moynihan did have some ideological connections to the neocon movement. Early on he was associated with people like Irving Kristol, Jeane Kirkpatrick, and Norman Podhoretz, after all.
To call him a neocon would still be inaccurate (as is the case with most people who are called "neocons" on here).
Well considering DPM a neocon is not something that was made up on here. Do a google search for "moynihan neoconservative", for example.
Granted, he is even so quite the "mild" one compared to how extreme the neocons became under Bush-Cheney.