I can't edit my above post but it seems that is the case. Entries have appeared to have been removed/deleted from the Seeker thread that were associated with maps where the cartographer didn't re-post in the Answer thread.

This is incredibly unfair to the individuals who were seekers. It's not our responsibility to make sure a Cartographer posted in the Answer thread and the rules didn't state that Seeker's would be removed if the Cartographer didn't re-post.