I actually cannot post in any affiliate or workshop forum. For example, I can't post in "NeHe Productions" or "Events for Gamers" either.
Everything else, with the exception of Image of the Day, I can post in.
I cannot haz iotd.
I wonder if this is related to the 'Marketplace Seller' usergroup from having paid and free content in the marketplace.
(Which, incidentally, doesn't show up under "My Content", but is definitely in the marketplace)
I get free GDNet+ membership from that usergroup - though I haven't actually generated much revenue for GD.net to make it worthwhile to you.
Edited by Servant of the Lord, 17 February 2013 - 07:22 PM.