A Case of Mistaken Identity

"This isn't who you hoped for, after all. They're no-one of particular importance, and eventually they'll pass from your memory. Perhaps there is no-one else available that you'd care to meet."

After all named Followers and Patrons have been met, is provided when Talking about Lore or Exploring Peculiar Rumours, indicating this. It seems to have no other use apart from to tell the player that the option is depleted.