Let me ask you this.
Have you purchased Topping equipment yourself of the shelf and compared the insides to what is sent to you for testing to ensure they are the same?
Why did you not speak up when 39% of the purchasers of the DS90 owners experienced problems - this of a Dac that you highly recommended? Should recommendations not take reliability into account as well?
Do you think it is reasonable that John Yang comes on your site to rubbish the products of other manufacturers, but runs away at the first sign of a problem.
If your site is not a cult, why have you thrown out members who have differing opinions to products and to measurement than you and your members? This site allows all opinions and views.