It offsets boost and other services manipulations.
Boost/other and rack up server firsts one day…move servers and rack those up too.
Classic gets restrictions based on service games retail has see. Like boosting alliance for some actual legit alliance edge, throw in faction and server move to be all setup for guild hall of fame runs. or what passes for it here.
the boost in retail is a raid lock. faction change another lock. realm move…another lock.
Its basically so you can’t have say more pro skilled guild for giggles going dude lets spice this. up. Lets realm first 2+ servers…in 1 week.