Or perhaps more canonically QM's level history ([href://?node=QM;type=user;displaytype=xml|QM's level history]), for those who don't?
But you still have to search for "levelchange".
As stated earlier, this only works for the logged in user. Non-you targets get something, but not everything, and not the levelchange: Not tye's level history
Quantum Mechanics: The dreams stuff is made of