Could we to make the bad perks go away on otherwise good thralls . I tried to link other posts but it would not work, sorry.
Use potion to remove a perk of your choice (I know different than player use but, thralls aren’t players) and allow you to relevel the perk with the same amout of exp that was needed to get to the level it was obtained.
There thank you OP. Wanted to add this to give credit to OP, though I think my idea may be slightly different.