Tried to make an orcfest a year or so ago - And despite it having been done in similar fashion multiple times prior - Imms stepped in and denied some of the orcs (One, at minimum, was appropriate) but they got way over-orc-hatey and overdid it if you ask me.
Since then I haven't been orcy, nor seen an orcfest, and I imagine (assuming they are consistent [how likely is that!]) that they'll act the same, since I was told that due to it being posted on QHCF it was considered OOC coordination and is thereby bannable.