The Wikidata Entity Suggester helps to identify items as values for claims at Wikidata, based on their labels. Unfortunately, this is difficult if the label contains special characters which might be difficult to enter if the keyboard does not provide direct input.
I therefore propose to suggest an item based on the ASCII equivalent of the label(s) as well.
Currently there is (approved) bot editing going on at Wikidata to add ASCII equivalents of labels as aliases (at least for languages en and es). This is also justified with the difficulties related to the Entity Suggester mentioned above. It appears to me that we are adding aliases here to compensate a functional deficit, not because the entity is actually known under the ASCII equivalent of the label.