I think you are over reacting. And he may simply choose to ignore you. He's under no obligation nor is anyone else under any obligation to reply to your PMs or anyone else's PMs ('cept for me, Saltheart & Slip & Spec in their respective domains

)
Now I would be really understanding if he did not reply to a PM now or ever from ya... And others too.
Not saying this in a negative tone but just sounding like da way it iz with some people ...