Pm blocked? Is that doable in this forum? He's online right now, and I'm not sure how can you approach him. Maybe quote some of his posts?
Pm is able to be blocked, someone who scammed me blocked my PM a time ago.
Just email him, or make a post like this, so he sees it pop up (if your names in the post he will likely read it)
Unless you are really that annoying, and he really wants to ignore you.
Quickseller is generally very trustworthy and is right 95% of his accusations, so maybe you are red for a reason.