The recent proliferation of using the term: "So-and-so is not a Salafi." Is it permissible to use such expressions?

Question:
May Allah reward you, Honorable Shaykh. This questioner says: Lately, people have been exchanging the term that so-and-so is not a Salafi, or is not among the Salafis. Is this expression considered declaring someone an innovator, and therefore, is it necessary to establish the proof against him?

Answer:
By Allah, I warn against this exchanging of terms. Praise be to Allah, the sons of Muslims and the students of knowledge are all, if Allah wills, in a good state, and all are upon the creed of the Salaf. Even if some of them have shortcomings or ignorance, they do not exit from being Salafis, and this speech is not permissible. This speech is not permissible among the brothers, the students of knowledge, and the sons of Muslims. In the lands of the Muslims, this speech is not permissible.
And it is obligatory to advise one another. If you see a remark on your brother, advise him. As for you calling him that he is not of the Salaf, or not of the Salafiyyah. Perhaps you do not know the Salafiyyah yet. Some claim the Salafiyyah and do not know it. And the one who does not agree with him says he is not a Salafi. If you ask him about the Salafiyyah and what it means? He does not know. Yes.