I think it is great that we have active moderators. I've been on too many forums that were a free-for-all, and believe me, it is better to have people who keep things organized and running smoothly.
I participate in many forums and have seen a huge number of threads moved over the years. Generally it is a good thing for everyone, but I agree with Gary that the usual practice is for the moderator to leave a note in the section where you originally made the post, letting people know it was moved. In addition, your first post is usually left in the original location, but that version is locked so people who want to respond must go to the other section where the active thread now resides.
If that is not what happened here, perhaps the sysops could make a slight change to conform to what I just described.