I've never liked like/dislike systems on websites, and I rarely ever use them. Indeed, when it comes YouTube videos I dislike/Reddit posts I downvote, they basically need to either be:
1. So ridiculously moronic and presented in such a stupid way that you can see no redeeming value in the content. Such as some guy ranting about how evil Mr Rogers was because his values were against the Chinese Communist Party.
2. Blatantly offensive to the point of being illegal (like say, animals or people getting hurt, literal threats, etc)
3. Obviously spam (like the kind of crap we have to keep filtering out this forum with captchas and what not)
If the content is merely bad in a somewhat subjective way, then I find it difficult to justify downvoting/disliking it.
That doesn't say I can't be critical in a review, just that I don't get as offended by bad content/opinions as some people clearly do.
Facecams on YouTube/Twitch suck and make it difficult to focus on the content.
The general editing style many 'popular' YouTubers have is also something I can't stand. The constant cuts, random gags, transitions every 2 seconds style feels utterly obnoxious to watch/listen to.
Similarly, a lot of TV shows need to calm down on the same stuff, since not every genre needs flashy title sequences, constant camera cuts, lots of transitions between shots, etc. I'm still not entirely sure what to think about the intro to Dragon's Den for example, since you've got a fairly serious business show with a very CGI heavy intro that almost feels jarring:
Finally, I don't care what Kotaku/IGN/Gamespot/Polygon/whoever think about video games, and i don't think either the rest of the media nor Reddit should either. Who cares what their favourite Mario Kart or Pokemon games are? They're no more qualified than you are, or anyone else online is. At least people like Arlo, King K or Mark Brown put some actual thought into their lists and analysis.