Remember that the Community tab can be used to keep tabs on your most interactive fans and vocal commenters; don't read too far into this, but it's potentially useful information if trying to reward viewer engagement in some form.
Often with very popular videos I see a ridiculous view count.
See this video from Google, for instance: See the view count here: Clearly, a video can not have 305 views but 22,000+ likes.
Well, one common method is to check the official You Tube Analytics, which are accessed through Creator Studio → Analytics and then → Real-Time.
The Real-Time tab will show the views in the last 48 hours for your popular videos, allowing you to more accurately and swiftly determine total audience reach for videos which have cached view counts.
The good news is that, because this is happening, you can almost guarantee that you've got more views than what's being displayed.
But how do you see how many views a video really has?
Despite common misconceptions, You Tube still caches video views on both the Video Manager and video pages.
When a You Tube video begins collecting a large number of views in a short period of time – normally around the 300-500 view mark – it starts caching that number, so refreshing is no longer an accurate depiction of total view count.
The Real-Time Analytics tab updates automatically every ten seconds, providing views of the last 48 hours and last one hour.
The tab can drill-down to a per-video basis or show entire channel popularity, something that's useful if you've got several videos going 'viral' simultaneously.
These can also be used, interestingly, to do research on other channels – primarily who's partnered with whom, if MCNs interest you.
All of this data can be used to make you more money on You Tube, get you more subscribers and viewers, and appeal to more fans.