I apologize, this is really more of a social experiment than research. I created a very simple bot (50 lines of CoffeeScript) that tweets when there has been an anonymous edit from an IP in the US Congress:
http://twitter.com/congressedits
You can find the code in the anon Github project:
I ended up generalizing the code so you can listen to custom ip ranges, and post using a Twitter account of your choosing. So anon is also being used by the Government of Canada Edits:
This work was actually inspired by a similar bot built with IFTTT to monitor edits UK Parliament:
https://twitter.com/parliamentedits
The IFTTT approach works because there were only two IP addresses to watch (Web proxies), which are easy to add recipes for. I’d be interested in any feedback/suggestions you might have.
//Ed