What works on YouTube?

[Bobhenry]

It seems like the old techniques don't work as well as they did:

• Keyword stuffing in the video description
• YT URL in the description
• Keyword in annotations, transcript, channel description
• Making video private, driving views and then making public
• Hangouts
• Creating video in YT Editor
• Junk backlinks
  

Those are the techniques I've used in the past and had relatively good success - but they don't seem to work today - so what IS working? Anyone care to share?