With the number of op-up related threads increasing (and the number of people seemingly getting op-ups decreasing), I now submit a long-standing question to the FT Council of Correctitude:

Is being moved from E- to E+ considered an op-up?

Yes: Because E+ is a service is not freely available to all pax
No: E+ is in the same cabin as E-, and access is not granted using standard upgrade instruments

Yes: An op-up can occur between any two differentiated products, and usually depends on substiantial differences in seat availability between two contiguous products
No: E+ is not a separate class of service from E-

So how do the Chief Justices (and Circuit Court Judges, etc) of FT rule?