Yeah, losing a DEX point is awful for anyone, but most of all a Thief, which is what I was. Now I show up EVERY time my Paladin does Detect Evil.
The good side is that when you put those Tears of Bhaal into the door, great things happen. One of those Tears gave me +1 to my WIS and CHA, which is what my question's about. On my Record screen, my newly-enhanced WIS and CHA are shown in red, the same as they would be if those raised stats were from a potion or an item. But they're still there when I'm naked, and my party's halfway through ToB and the stats are still raised. What's the point of coloring the stats red if they don't wear off?