This feature is interesting for Czech language too. Lot of applications allows accent free searching due possible issues in original data or some client limits - missing Czech keyboard and similar
> (I intensely dislike the idea of ignoring accents, but it's something > some people appear to need/want, and is supported by other vendors).
FWIW at least in spanish, users always want to search for entries ignoring accents. Nowadays I think most turn to unaccent(), but before that was written people resorted to calling transform() on both the stored data and the user-entered query, so that all pertinent matches would be found. People would even create indexes on the unaccented data to speed this up. It's an important feature, not a corner case by any means.
Not sure about other languages. For instance perhaps in French they would be interested in ignoring some accents but not others.
