Saying that someone has ill-thoughts while another does not

Q 1: We hear some practicing young men describing people as having good or bad thoughts; is saying so permissible? Please provide us with your beneficial answer. It may be worth mentioning that I am not pleased with such sayings and this is the most important reason why I am sending you this question.

A: It is permissible to use such descriptions to evaluate a person's beliefs, (Part No. 26; Page No. 375) characters, and the ways they deal with issues of Shari`ah (Islamic law). Thus people of sound Fitrah (natural disposition) and `Aqidah (creed) may be praised and commended as having sound beliefs, thoughts, and manners. On the contrary, other people may be described as having wrong beliefs, thoughts, and manners so that Muslims will beware them. It is worth mentioning that the descriptions mentioned above are similar to the renowned and well-established statements of ancient scholars such as their saying "So and so is a person of sound beliefs; they follow and apply Sunnah; they are firm in practicing Islam; they are of proper Din (religion) and piety..." They would also say the opposite such as "So and so is a person of wrong beliefs, Bid`ah (innovation in religion), not practicing Islam, deviated..." However, it is not permissible to give a person any unfair description for Allah (Exalted be He) says, O you who believe! Stand out firmly for justice, as witnesses to Allâh, even though it be against yourselves, or your parents, or your kin Allah (Glorified be He) also says, And whenever you give your word (i.e. judge between men or give evidence), say the truth even if a near relative is concerned May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.