I suspect I'm being picked up by an antispam thing of some kind.

My posts, when they come in from my link reposter, are not being reblogged, and other people are having problems seeing them:
http://andrewducker.dreamwidth.org/2719395.html?nc=8#comments

Is this some kind of antispam system I'm triggering? Or is something very odd going on?

Here's the original support request I opened, way back at the start of June:
http://www.dreamwidth.org/support/see_request?id=16285