Cool, we're all entitled to opinions
@InnaPickle
I'm not a defeatist as you suggest, I'm a realist.
The general public uses YouTube far beyond the majority of other platforms. With over 1.5 BILLION logged in users every month I believe it actually trumps Google for search enquiries (If not it's close).
As you mentioned, it's taken 15 years to get to this stage, therefore, it is not going to get beaten or matched by a new platform in the near future, as such is and will remain the strongest place to house content.
Regarding the content on one platform, that will depend on the style of content and your requirements as a business or creator. If the same video is on multiple platforms then those views will be shared across those platforms rather than accumulate in one area.
You are correct to some degree (in my opinion) and being 'on' multiple platforms is beneficial, however, you use the platforms to their strengths, so Instagram for photo, Twitter for comment, etc as their video content has always sadly lacked and not really picked up the necessary steam to pull people away from YT.
Using these different platforms to allow them to funnel interest to your 'home' is what's necessary. I for instance am on most platforms but only to support the YouTube content, let people know what's happening, what's coming up etc. This will change dependant on what the business needs though, do you want people to go to a website, build an insta following, or something else (like go to your YouTube).
Well done on the degree, I don't have a degree, just 5 years of real world experience growing my channel to the stage it is now, which hadn't been reached before in the UK. I don't for one minute suppose that I know everything in this or am any kind of professional marketer, however, the marketing professionals I know personally share a similar view to me.
Anyway, that's my thoughts, there is no definitive right and wrong other than YouTube can do what it wants, and if it deems it that vape reviewing is no longer allowed, we have no ability to argue. Reviewers will die off, some will maintain their profile on other mediums and we can only hope that one platform rises up and is useful.
What it will certainly mean though is that smokers and new vapers are not going to have access to the same free information that they have now in the normal places they'd look. I think we can all agree if that's the case everyone loses out.