Apart from privacy, I also went that route because hardly ever looked at all tha data GA or (the thing formerly known as) Piwik collect, at least beyond bare counts.<p>I care about hits per page (ideally by humans, unique or not), the time it takes to generate the page server side, and how long it takes until the DOM is finished loading. I throw that into buckets, i.e I have hourly counts for the last few weeks, daily counts for the last few months, and so on; the only stuff that will be kept "forever" are yearly counts. I still rarely look at it, but at least now it takes up little space.