From what I can tell, simply “re-rolling” on another Server doesn’t “fix” their issues in why they want “fresh” in the first place.
You can’t go through Phases over and over again, on stagnated Servers. The economy isn’t “fresh” simply by re-rolling whereas “fresh” (I guess) “fixes” that. And, it’s an “even playing field” for all, on “fresh” than an already established server.
My only problem is these “fresh” people using “fresh” and moving their characters over to “stale ones” to “safekeep” and continue abusing the “fresh” experience to level and continue saving their progress onto the “stale ones”.
EDIT: I’ve discussed it, here:
https://us.forums.blizzard.com/en/wow/t/what-is-fresh/879375