As a US distributor of high-end brands, I've personally dealt with MD, MF, JV. I recall a wise old saying..."If you can't say something positive about someone, don't say anything". I will say there are MANY YouTube reviewers that are quite insightful & honest and certainly worthy of consideration.
I have absolutely nothing positive to say about TAS (or by extension HiFi+) reviews. Does that count as not saying anything? I’ve also not seen a YouTube review that’s anywhere near what I’d call rigorous or worth a damn — ok stereonews.net being one exception, but he also does thorough print reviews so not just another cheesy YouTuber. The rest of them? Trailer trash showboaters that are all show and very little go. IMHO.