misspelled uncredtied attribute

Having just spent time submitting corrections for dozens of misspelled "(uncredtied)" attributes for cast (actors and actresses), I would like to suggest that the staff:
a) put in place a check for this common misspelling to trap it from being re-added
b) look through the other areas of the database for this misspelling, correct them, and also add a check to prevent it from being re-added in those areas.

Thanks.