A classical preload-notice is cliché - USERS WON'T READ but press "OK, Proceed..." and even if they understand that there's a privacy-concern about this site, they will not have a clear idea (without reading the warning very carefully) exactly what it was about. Some other notification method may also come to your mind, came to mine one too - but none of them were 0% annoying, except for one.
|Elements are painted-red if a fraud is detected with its corresponding parameter.|
I said that I wanted the icons to be monochromatic 'as much' possible - but now I'd bow to this exceptional situation (Heh, ain't I histrionic? Psst. it's all pre-planned). Let's suppose, a site says it keeps the user data as long as 3 months but actually practices to keep them longer than that. Here, if we (the browser) make the persistence-arc chromatically different than the others, then voila! The icon remains intact, no annoying popup/notices/texts - but just at the very look at the icon, the user will know where exactly the trouble is (& what's better color than red in this case?). Same procedure can be applied for each and every parameter, and the browser has to do that by matching the HTML attribute-value and the site's privacy-practice list record.