As an AI language model, I don't have access to real-time information and my knowledge cutoff is April 2023. Therefore, I cannot provide insights into the trustworthiness of astrologers in 2015 or beyond. Trust in astrologers can be highly subjective and dependent on individual experiences and beliefs. It's important to approach astrology with a critical mindset and remember that astrological predictions should not be taken as absolute but rather as potential points of reflection.