Credulous- having too great a readiness to believe things; gullible
Ex: The owner of the little shop of horrors relied on a clientele base of credulous rabbit-hole divers, conspiracy theorists, and imbecilic ghost-hunters to keep her business afloat. Who else was going to buy the taxidermy bats, human-skin lampshades, and shrubberies made from the Yeti’s pubes that adorned the dripping, scarlet red walls of her pathetic little slice of the American dream?