I think it may be due to this drvirtual7 video. Ever since I saw this I avoided 528 hz because I was unsure. Now that Sapien has uploaded this, I am reconsidering.
Description from Drvirtual7 728 hz video:
"728 Hz heals the dissonant effects caused by 528Hz Saturn black cube frequency. 528 Hz blocks the heart chakra disconnects the pineal gland via the third eye. 528hz causes further damage to DNA allows intrusion soft kill frequencies to enter a matrix mainframe other effects of 528hz is allowing soft penetration of cell phone tower and television frequencies such as 528hz and GHz increased with brown/Brownian noise to blast through a humans protective shield. 528Hz is not a love frequency lime lighted by Cointelpro it is Enochian magic mathematical formula used in Illuminati rituals centralized. By this intrusion, the dis-empowering of the will is achieved 528hz creates a magic window for the Saturn black cube mirrored to 666 to enter your universe; "