We constantly validate the likes/dislikes on a video and only show the count we believe to be valid. Here more info: https://goo.gl/TM6pTM . Hope this helps.
@TeamYoutube @YouTube why are my video likes disappearing I have 2 friends that liked the video and after 2-3 days there like is gone why?
-
-
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.