Language is ultimately defined by popular usage, and the majority of the usage of "hacker" means "black hat" type activities. You can argue for a different usa

Language is ultimately defined by popular usage, and the majority of the usage of "hacker" means "black hat" type activities. You can argue for a different usage until you're blue in the face, but the black hat usage is pretty clearly the dominant one and has been for quite a while. Insisting on a different usage and using the word that way yourself just leads to confusion and makes you sound pedantic, no matter how correct you feel your definition is.