Zivush - 9:15 am on Jun 22, 2012 (gmt 0)
What's the point of removing/adding GA for improving SEPRS?
The same data can be taken (by Google) from Google Adsense and/or Google WMT and/or Chrome users and/or by the search engine itself.
You may trust them or not, GAer wrote: Your website data will not be used to affect your natural search results, ad quality score or ad placement. Aggregate data across many customers will be used to improve our products and services.