It's simple: Dox is short for "docs". Shortening a 4-letter word to a 3-letter word is sensible (albeit lazy). Shortening a 4-letter word to a 4-letter word ("doxx") is stupid.
I don't know why people spell it with two. Maybe they think it looks cooler? But really it's hacker slang for "I accessed and published sensitive information about an individual" and is in most cases horrible.
I don't know why people spell it with two. Maybe they think it looks cooler? But really it's hacker slang for "I accessed and published sensitive information about an individual" and is in most cases horrible.