'Spy pixels in emails have become endemic'

I'm conflicted about this, I can fully understand why tracking pixels exist. I've been thinking about how best to track how many views my newsletter and RSS feeds get and using a pixel is the most obvious answer as part of my growing interest in analytics.

I am not interested at all as to when or how many times an individual interacts with a particular item, only the raw numbers. But I can appreciate how sceptical anyone would be if they knew it was there. They can only see their side of the pixel, not what I, or anyone else, might be doing on the other side.