I watch these guys when I have absolutely nothing else to do, because they are not very knowledgeable, even when it comes to traditional cars. They have the right attitude in the videos, they are not afraid to try new things, but IMO they are not useful for the majority of viewers nor car makers.
Yes, I usually read the comments under the videos, because I like to know what the audience thinks. They are usually the loud minority, but they do count, as many people choose to agree with them, without verifying the information and opinions.
I'll probably write about some of their videos and the mistakes they made in them, but for now I just want to say to all the Tesla haters out there: you're misinformed. People who like Tesla are not in a cult, they just really really like the brand, because it changed their lives for the better and it promises a lot more positive changes in the future. In the meanwhile no other technology company seems to be doing that in any meaningful way.