Islamic sense of ethics and morality abhors such practices. Here are texts that explicitly prohibit them:

“O you who believe, no man shall ridicule other men; the latter may be better than the former. And no woman shall ridicule other women; the latter may be better than the former. And don’t defame each other, or call each other insulting nicknames. Evil is the name of impiety after faith. And any who do not refrain are doing wrong.” (Al-Hujurat: 49: 11)

The Prophet (peace be upon him) said, “A believer cannot be the one who impugns, curses or utters foul words.” He also said, “It is indeed a grave sin for a believer to deride his brother.”

Almighty Allah knows best.