I frankly don't think Radu is the annoyance. My biggest annoyance frankly is when I have an outcast and I do the work/investment to get OCR to a passible level and PC guards kick my character out of the RP area. That investment includes feats, skills and sometimes even spells. There are some obvious considerations from the Garda side such as "I have no way to tell what this other PC's OCR is" and "I'm also a player with agency" but blah, it's definitely a peev.
Supposedly, they do actually have a way to tell OCR now. I remember something about an update including it a while ago, maybe a year or two. I would assume most don't use it, or they take one look at your character's phenotype and just decide to shoo, even if it says "this person is tolerated/welcome in Barovia."
Unfortunately as you probably already know, the ruling was that player guards are not affected by the "dressing up" an outcast can do, unless they choose to be, and disguises can't hide a character's race.
To the rest of the thread:
I don't play an outcast right now, but I have to agree, I think this is the least of an outcast's worries, having seen (and in some cases stopped) player guards taking outcast corpses from the temple to throw them either in the well or the charnel pit. Imagine being a new player with no witnesses as to where your body went.
The outskirts hub is not supposed to be a place for outcasts. EO has related to us in the past that Drow and other outcasts used to hang out on the bench outside the tavern, so it's no wonder they hired a guard to keep them at least 30 feet away. Now, these outcasts have moved to the other side of the road, and they are usually not contested unless a player guard patrols off toward the temple. Most PCs tolerate or ignore outcasts, disapproval is rarely voiced beyond whispers with sympathetic parties, and they almost never sell them out.
Moving Radu indoors permanently could be okay, but I think the point is he's supposed to scare the unwanted types away from the tavern. It's not a tavern that welcomes outcasts. Outcasts already have the run of the outskirts and they hang out in the graveyard or on the far side of the temple without a worry most of the time.