JJ is one of our luminaries in audio. He is a world-class expert in audio processing and psychoacoustics. He is an AES Fellow among other accolades:
https://www.aes.org/awards/?ID=1338
AES FELLOWSHIP AWARD
James Johnston
The AES recognizes and honors those who have made outstanding contributions to the field of audio in engineering, technology, service, and the arts through its Awards Program.
In 1997, James Johnston was presented with the AES Fellowship Award for significant contributions in the area of bit-rate reduction audio coding.
The fact that you don't know him means you have not spent any time researching the science in audio. I suggest taking caution in your tone as a result.