Wikipedia blocks opt-in AdSense script?

One of my readers made a Greasemonkey script that adds Google Adsense to the Wikipedia (with the ad revenue going to Wikipedia of course). So, users can OPT-IN to see ads and donate to Wikipedia with their attention (to the ads).

However, based on the comments from the post I wrote, it now seems Wikipedia is blocking Google’s ability to target the ads.

Why does Wikipedia have to stop users from opting in to this?

We know for sure that Jimbo is not anti-advertising…. so it can’t be that. 🙂

Jimbo: Why is the script being crippled?