Yeah, lots of junk is added today, not just ads. I can't find the link right now but I'm sure I saw a couple years ago (probably linked here) an article showing

Yeah, lots of junk is added today, not just ads. I can't find the link right now but I'm sure I saw a couple years ago (probably linked here) an article showing that over half of the data traffic is either ads or junk that wastes bandwidth, which isn't flat on mobile.