I used to be asked that about RSA because I really liked Ray's offerings. Then Woo Audio because I did some reviews and offered modifications (I didn't do them, just showed what I did). Then HiFiman because I have visited with Fang at his factory in China and have a lot of his products. etc. etc. Oh, and when Xin was making amps and I used to visit with him at his home. Nope, I just buy a lot of equipment and know what I like and what I hear from years of experience.
He thought I was affiliated with iBasso as an employee as well.