From Consecutive fifths - Wikipedia, the free encyclopedia:

During the common practice period, the use of consecutive fifths was strongly discouraged. This was primarily due to the notion of voice leading, which stresses the individual identity of voices. Because of the powerful presence of the fifth above the fundamental in the overtone series, the individuality of two parts is weakened when they move in parallel fifths.

In rock and metal music, we have another word for consecutive fifths: POWER CHORDS. The foundational musical idea of hard rock guitar, is a construct that was forbidden in classical music.

Just something I've found interesting ever since I first learned about it.