...that I think this is a mostly cosmetic change that will weed out a few bad apples.

As someone who led the cabal for 200+ hrs, and has played nearly every variation of rager (except for a hiding scout), most of my ragers never used magic portals. Because, you know, they were magic. I would honestly never go to (old) Arboria because you were entering a clearly visible magic portal. Stuff like Vassagon's old shrine WAS used heavily, as there is no "visible" magic of any sort.

None of my ragers ever went to Trothon. None of my ragers ever went to Silent (it was closed for the two ragers who got "pinged" by the quest to get in though, sadly).

That being said, I can see a few rager roles that would allow for such use of portals. Of course, those roles would probably get the IMMs attention anyway, and thus, Portal Sickness would not be an issue.

The only person(s) I see this affecting are the people who don't really think all the times about the basic RP of the character.

And of course ranking parties in areas with magic portals