I have people subbing for a few days, and then unsubscribe. I´m suspecting they expected me to subscribe back to them.
I have noticed that the view count is up to date, but the analytics is a few days late, which is annoying to me!
I learned to stop looking for the sub #'s. It'll grow eventually if you're working at it.
Looking at the thumbs ups and downs and subscription numbers drove me a little crazy in the beginning.