I certainly hope it won't last! But there isn't a large downside to angering the few of us that were just passing by.

My dream is having some AdBlock-style filters for misbehaving websites, run by tens of thousands of people. Then we could nip these practices in the bud.

There's not much stopping you from making exactly that. The main issue is that iOS devices won't allow users to install that sort of modification, and it doesn't look like newer iOS devices are going to be jailbroken any time soon. Older devices though, sure.