hmm well blackhats usually dont go under the term sk's and they do dmg.
and they enjoy shafting people.
where whitehate usually have a job in it security and do their hack to ALLOWED-testing
and is often sitting in a admin/co admin position in coorprations with huge intranet and
knowlege sharing networks.
grayhats, well do a little of both, but regardless if you hack to help or not if its not allowed
regardless if your a sk or experienced you are considered a hacker in the eyes of the law,
varies around the world ofcourse.
As for user titles, well can mean anything only real way to know is to ask.
ask12b1, well in this case ask 1 2 know.
another great resource for this info
wikipedia.org/wiki/Hacker
aka a craftsman, haha