While we absolutely adore the concept of user-created sprites, implementing this feature presents certain challenges. One of the main concerns is potential copyright issues, which would necessitate heavy moderation on our part. Moreover, creating a sprite editor without the sharing option would require a significant amount of developer resources. Given these factors, it isn't an easy or quick feature to implement, and we need to carefully consider its feasibility. We appreciate your understanding as we aim to maintain a balanced and fair gaming environment.