Fraudulent Deceptive Manipulative Inauthentic Phony Bogus False Misleading Fabricated Dishonest Suspicious Unreliable Spammy Untrustworthy Biased Malicious Bot-generated Plagiarized Cookie-cutter Template-driven Repetitive Overly positive negative Exaggerated Unverified Low-quality Shill Astroturfing Sock puppetry Review bombing Ghostwritten Payola Black hat tactics farms Click Astroturf reviews Sponsored Competitor sabotage spamming Multiple accounts Masked identities rings padding hijacking stuffing manipulation Reputation fraud monetization Algorithm gaming User-generated spam