I mean that's good and all but if you have battery draining ads being blocked by Google you are being blocked by a competitor and that seems like something someone would want to sue for, and what's more something I think you would win a lot for.

I still don't understand who thought that allowing ads to run arbitrary code in the first place was a good idea.

Advertising companies, like google.

What problems does that solve that displaying an image (possibly animated gif) that links somewhere would have?

in other news:

local drug dealer will prevent competing gangs from selling drugs in their turf.