I got seriously into Audio about 25 years ago and for many years regarded TAS and Sterephile as unimpeachable sources. Gradually I realized that as knowledgeable as the writers may be, there is a tremendous amount of subjectivity in Audio, and there is also a need to sell magazines and keep their advertisers happy. I particularly lost respect for TAS when they became the cheerleaders for MQA.
Regardless, the value of these magazines is to alert one to technology development. The internet now can perform the same function. It would be interesting to see if these magazines survive another 25 years