It messed up for me aswell. I actually posted something like 'wtf, i posted twice and it just dissappeared'. But now i can see it again, and cant delete the 'wtf' post.
It's a database error.. a SQL thing I think. It happened a while ago as well.. Skip's not doing the bestest job as an admin. No, the Amsterdam (or Dutch) forum doesn't have a mod, but for questions etc you can contact one of the supermods (like Maggie Sugar, Madcrappie or Xaosflux). But honestly, I think this forum is doing just fine without moderation!