Whilst I appreciate the law exists for a good reason, that doesn't mean the law is good. In it's current form it simply doesn't help user privacy or website owners. I'm hardly alone in saying as much.
We ourselves wrote no "functionality that tracks people" - our site merely uses Google Analytics (anonymous measurement of visitors) and social plugins like Disqus, the Tweet and Like buttons. By the letter of the law those have to be concealed until a user has manually opted in to display them.
In practice everyone instead started showing slide-down banners which accomplish nothing for privacy but piss off users.
Anyone who uses analytics properly knows there's no equivalent log-based solution. Understanding the path users take through a site, how long they view pages for, whether they buy when they came from one advert versus another - these are common practice for good reason and they have ABSOLUTELY ZERO implication for user's privacy, as all this data is anonymous.
The relatively few websites which genuinely might be jeopardising user's privacy - Facebook, Google, Amazon etc - tend to be large, ubiquitous and mostly ad networks. The average 10 page company website is not technically sophisticated enough to subvert a user's privacy nor do they have the visitors to do so.
My fight is with a stupid law, not with privacy.