Visit Spying?

So I know that you can monitor the visitors to a blog for all kinds of things. Here are a few graphs of my blogs stats. I have now noticed some limits to statcounter.com. Firstly it does not keep on record all visits only the last 30 visitors are recalled for detailed analysis and even for total site visitor it will not generate graphs longer than a few months long. I wish I had of known this earlier as I would have not used this service and looked for a less limited one.

Flickr allows to a certain degree for each account holder to see who has been visiting their images. Flickr allows users to see how many times images have been viewed and can also see any comments that have been written about them.