Wikipedia:BLP

We must get the article right. Be very firm about the use of high-quality sources. All quotations and any material challenged or likely to be challenged must be supported by an inline citation to a reliable, published source. Contentious material about living persons (or, in some cases, recently deceased) that is unsourced or poorly sourced—whether the material is negative, positive, neutral, or just questionable—should be removed immediately and without waiting for discussion. Users who persistently or egregiously violate this policy may be blocked from editing.

BLPs should be written responsibly, cautiously, and in a dispassionate tone, avoiding both understatement and overstatement. Articles should document in a non-partisan manner what reliable secondary sources have published about the subjects, and in some circumstances what the subjects have published about themselves. BLPs should not have trivia sections.

Criticism and praise should be included if they can be sourced to reliable secondary sources, so long as the material is presented responsibly, conservatively, and in a disinterested tone. Do not give disproportionate space to particular viewpoints; the views of tiny minorities should not be included at all. Care must be taken with article structure to ensure the overall presentation and section headings are broadly neutral. Beware of claims that rely on guilt by association, and biased, malicious or overly promotional content.

Pages that are unsourced and negative in tone, especially when they appear to have been created primarily to disparage the subject, should be deleted at once if there is no policy-compliant version to revert to; see #Summary deletion, creation prevention, and courtesy blanking. Non-administrators should tag them with {{}}. Creation of such pages, especially when repeated or in bad faith, is grounds for immediate blocking.

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Wikipedia