This site never collects any personal information from you, ever, for any reason. I have no use for it, and I do not want it. If you are asked to give up any, it is not me, you have gone to some external page that I have nothing to do with.
Google, however, collects personalized data for AdSense as well as anonymized data for Analytics. I can not see any personalized information Google may collect. Google has published instructions for opting out of personalized ads should you wish to do so.