The classical matn lists several categories under disliked Imamah, including a slave, a blind person, an ignorant Bedouin/rustic, an ignorant person born outside marriage, an open sinner and an innovator.
Important qualification from the commentary:
• the description 'ignorant' qualifies the Bedouin/rustic and the person born outside marriage; if such a person is learned and pious, that particular dislike does not apply.
• These entries are historical/legal source classifications. They should not be expanded into invented claims about a person's moral worth or physical purity.
• A disliked Imamah is not automatically the same as an invalid Imamah.