Infraction: 6. Do not post unless you have something new and worthwhile to say.
Message to User:
Don't answer terrible lazy posts, just report them.
So again, why do we use Lana'thel's Chain of Flagellation?
Because the value of Ahn'kahar is inflated by the 60 hit rating, which you can get with 10str/hit gems and the glove enchant. Replacing 60 haste or crit in gems with hit is more efficient than using the neck. Unless you're extremely low on hit and don't have enough yellow sockets in your gear, which is not the case for the BiS setup.