“Since the beta’s launch, we’ve seen a growing rise in farming quests using the tool to dump large amounts of XP. This jeopardizes the overall quality, integrity, and purpose of the Story Creator mode. Ultimately leading to lower visibility of the creative, interesting, and fantastic community stories that have been released”, Ubisoft said.
They continue, “We want to focus on rewarding creativity by highlighting quality quests. We’re working on corrections and adjustments to reduce the impact of such farming quests on the gameplay experience”. If you assumed Ubisoft would be okay with XP farming in a single-player game without any striking competitive aspects, you’ll need to consider again.