Being pedantic, we (The Mods) didn't block your first post.
Every new member of the forum automatically has their first few posts placed in a queue requiring approval, once you've posted a few times the situation reverses - posts are posted and require hiding (if appropriate) if they have been reported to us.
Usually, first posts are approved pretty quickly, but there are some instances where The Mods confer behind the scenes whether to approve or not. Your first post was one.
There are not that many Mods, we are unpaid volunteers who squeeze moderating around Day Jobs, family, sleeping, eating etc. Sometimes it takes longer than we would like to reach a consensus decision.
We do the best we can, honest!
Best Wishes (on behalf of the Moderation Team)