Currently, the Corsair Camp has a central pillar, made of Numenorean Brick, as well as a cage with a floor of the same substance. I don't think this is very practical at all--do the Corsairs just carry around a stone pillar, ready to dump it wherever they set up their tents? Disregarding the entire question of how well the Umbarrim could make Numenorean brick, it just seems unrealistic that every tent cluster they make would have a big pillar.
I think it would be much better to change it to some other central feature--perhaps a campfire, which is strikingly absent in many of the mod's camps. The stone floor of the cage could be replaced with wood--or simply just removed, and the floor be whatever the structure is spawned on.
Though a small change, I think it's worthwhile to pursue realism here. As always, your feedback is appreciated.