Permascowl? That sounds pretty shallow to me. I fail to see a cookie cutter attitude gives a race "personality." One thing I like about TES is that it doesn't typically do that. The thing about customization is that you can customize your character, not have a cookie cutter template based on what race you pick. I'm not saying ridges like that are bad, but any reaction to someone with them as if it's a part of their personality would be more racism on the other's part, and not an aspect of the Dunmer's personality.
Please stop missing the point, it degrades us all.
"Personality" in the sense that they have something that is personal/specific to them. There's tons of customization options available. That has been demonstrated extensively by the screenshots we've seen. We've had three Argonians thus far, each evoking different reptilian critters: "Lizzle-Bob" looks decidedly like a dinosaur, the dude with the horns is quite draconic, and Morgan Webb's looks somewhat like a slightly goofy skink. It's clear that there will be tons of variety within each race.
But what's truly important is that none of them feel bland and generic. A Bosmer will look different from a Dunmer no matter what. In Oblivion for their few differences they looked rather samey.