complimenter

noun complimenter

• critic — A critic is a person who writes about and expresses opinions about things such as books, films, music, or art.
• aristarch — a severe critic.
• dispute — to engage in argument or debate.
• mud-slinging — an attempt to discredit one's competitor, opponent, etc., by malicious or scandalous attacks.
• defame — If someone defames another person or thing, they say bad and untrue things about them.