Although that would be lessen if Donkey Kong in the Mario Games was removed in fact there are some villains I feel should get removed either, they redeem, or not done a lot in terms of villainy or their evil deeds are way too standard.
The villains that have a villains wiki thay should get removed.
Donkey Kong (Mario vs Donkey Kong Games)
Cranky Kong - these two have redeem and already surpassed their villain status a long time ago.
E-102 Gamma- well his only villains deeds was kidnap Froggy from Big the Cat.
Wario- while he hasn't redeem, it was clear that he is now doing a lot of good lately.
Same goes to Waluigi.
Nabbit- while stealing powerups are bad that is completely tame compare to other minions like Goomba, Koopa, Dry Bones, Hammer Bro, Bullet Bills, Piranha Plants, Bloopers, Wigglers, etc. He is also doing a lot of heroic acts in the Mario and Luigi Bros games like Mario Wonder.
Bowser's Brother- his only bad deed is aiding Bowser and Bowser Jr. in taking over the mushroom kingdom which is the only thing he done is bog standard and I say it isn't as bad compare to King Dice from Cuphead game since King Dice was willing to assist The Devil in taking their client soul in the Casino so having King Dice to have a villains wiki is understandable and deserved but I wouldn't say it is understandable for Bowser's Brother.