WTF

In my last little post I refer to the apparent popularity of my blog in Germany as shown in my stats package. However there are inconsistencies that lead me to believe these thousands of hits are what are known as referrer spam. I am at a loss as to why anyone would want to do this as the object of the exercise is to improve the site rating on google search. There'd be no point in my doing that, as I do not monetise my site, and ads never appear, even in the comments. So who is it? And why? It doesn't bother me enough to do anything about it.