The issue of Ad's , from a mobile non-wifi point of view, is that you could be on a limited data plan , and a websites analytics, Ads etc, can Hoover up a large percentage of that.
So you have competing diametrically opposite requirements. The site owner needs to live/break even, the site user has to mind their data pennies, and the advertiser is just hungry for ever more joined up metadata.
This again is one of those daft after-the-fact excuses.
So you don't have a data plan that allows you to download a couple of extra kilobytes a page, but happily will download hundreds of kilobytes worth of images that this webpage's style puts on you?
Analytics and ads account for a small percentage of the BM page load depending on the ad. There's no data plans in the world that could get you using this site frequently but you need to trim to that extent.