Yes I have, i guess it´s because that they changed the algorithm, which prefers longer videos!
Sorry, that's completely false.
I had discussion with our Yt brand manager a few days before New Year - she stated that Yt saw a proliferation of channels making videos longer than 10 minutes over a year ago, now creators are back to making a mix. She stated that is preferable, and recommended videos be optimized to what they need to be. Longer is not better, shorter is not better, but optimized to what your viewers watch.[DOUBLEPOST=1483401031,1483400878][/DOUBLEPOST]
Well as an update, my views have returned to normal the past 26 hours. I guess my target audience were just celebrating New Years.
As you grow and reach more of a wide following, the traffic ebbs and flows with what the "masses" are doing. Bigger channels move more into the center of the bell curve where the averages are.