Well yes, this is designed to actively disrupt (and not in the usual constructive sense) the ad-supported site model AFAICT. It'll do this by making the data useless, by getting sites thrown off ad-networks and (in less well monitored cases) by draining the coffers of the ad networks for ads never seen.
I like the idea of an ad-free 'net, but it's not really up to me to dictate to site owners what they can do, which this seems to be.
--edit--
Having read the comment parallel to mine I'd like to say I agree that there are two sides to this - it may be mean spirited to use this plugin, but it's not exactly friendly to attempt to track everyone, all the time.
Ad networks are only a subset of ad-supported sites. We sell our own ads directly to clients who we think will appeal to our audience. There's no network or third party tracking/targeting people.
Do you also like the idea of ad-free net that is controlled by megacorps, because only large entities will be able to monetize their content in ways that are not ad supported?
I like the idea of an ad-free 'net, but it's not really up to me to dictate to site owners what they can do, which this seems to be.
--edit--
Having read the comment parallel to mine I'd like to say I agree that there are two sides to this - it may be mean spirited to use this plugin, but it's not exactly friendly to attempt to track everyone, all the time.