I too haven't seen any natural use of U+2010. But some Unicode characters are equally underused, often because they are historical or designed for specialized o

I too haven't seen any natural use of U+2010. But some Unicode characters are equally underused, often because they are historical or designed for specialized or internal uses. Here U+2010 can be thought as a normalized form for U+002D after some processing to filter non-hyphens, which justifies its inclusion even when the character itself might not be used much.