Clickbait!
Have you noticed how after Danny said he had discussions about one unnamed player there's been la ton of articles written about how he tried to trade for the Unibrow, WCS, Okafor, 'Melo, etc? There's a bunch of stuff written with unnamed "league sources" that's pure speculation. It's clickbait, folks.
I am sure that Danny sent out feelers to every team to see what kind of deals were out there. That's his job and of course that would include contacting the Knicks so he could see if there was a deal to be made. My guess is that given 'Melo's age, if Danny did specifically ask about him it was to see if he could be part of a multi-team deal that would have brought in a younger player to Boston. But I sincerely doubt that Danny wanted any part of 'Melo on the Celtics.