If punctuation can become an impediment to successful analysis of unstructured data, so may its font. If a query looks at a specific font literally, then the query may miss many legitimate instances where a hit should have been made but wasn’t because of a mismatch of fonts.
For example, a query is done for all instances of “Wimbledon”, where Wimbledon is in Arial font. The analysis would miss all instances of “Wimbledon” where the text is not in Arial font – even an instance “Wimbledon” in Arial Black font would not be retrieved. Beware of font-sensitive search engines.