Well, the thing is that in JS community there are tons of rock starts who basically do simple stuff (which was done 100 times before them), but only after their

Well, the thing is that in JS community there are tons of rock starts who basically do simple stuff (which was done 100 times before them), but only after their presentations it goes crazy. People retweet them, use as a credible source, etc. Also, there are a lot of people who are very opinionated and just push it and by this become famous in JS land. Yeah, that's true, that they invest a lot of personal time in this stuff, and they do a very good job in balancing, but the problem is that people trust them in important questions like performance even despite the fact many of them don't know CS basics properly (like data structures, etc). I don't want to say all of them are this way, there are some well-educated people who definitely know a lot and deserve all of this. But as it was mentioned earlier, a lot of them are just 22 years old hip guys who released something what became mainstream/were involved in it and became ambassadors.