Meh, I disagree with your theory about using less tags. You should use all 500 characters for optimal results. There is no proof that likes/dislikes does anything to the SEO. I’m sure that is more for the content makers info and viewers warning. The description can be up to 5000 characters. Best to post your other video links. You have no proof of anything, noone does, we can only guess how youtube seo works..
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