Pointer arithmetic in linked lists can lead to confusion, particularly when attempting to manipulate elements directly. The pseudocode presented suggests removing an element from a linked list using pointer arithmetic, but this approach is flawed. In a singly linked list, each node only contains a reference to the next node, making it impossible to access the previous node directly from the current node. Therefore, to remove an element, a separate pointer to the previous node must be maintained. Additionally, the concept of using pointers to navigate memory can result in errors if not carefully managed, especially if the pointers do not correspond to valid elements in the list. The last element in the list will not have a valid next pointer, which can lead to runtime errors or undefined behavior if not properly handled. Overall, manipulating linked lists requires a clear understanding of their structure and careful pointer management to avoid errors.