Some facts are:
1-to comment, like and dislike on a video you need a Google account.
2-when someone views the video the view count of the video increases by one regardless of if the viewer has a Google account or not.
So, how useful is the data we get via the like/dislike bar? I mean, if for e.g. you've got a video with 1 million views and the like/dislike value is 4000 to 250. Can one use that data to say what would have been the trend of these 1 million people if all of them could had a Google account or should have had a 3rd data like the number of abstention value have been added?

Question

Some facts are:
1-to comment, like and dislike on a video you need a Google account.
2-when someone views the video the view count of the video increases by one regardless of if the viewer has a Google account or not.
So, how useful is the data we get via the like/dislike bar? I mean, if for e.g. you've got a video with 1 million views and the like/dislike value is 4000 to 250. Can one use that data to say what would have been the trend of these 1 million people if all of them could had a Google account or should have had a 3rd data like the number of abstention value have been added?