Although my suggestion is similar in kind to what had already been proposed, the main object to it was that it would create too much work for our already constrained resources. The addition of rate limiting is a technical solution that may or may not be feasible.
The people on this list can best answer that.
Does anyone know of any extensions that do something similar to the rate limiting that he described? Force edits into a queue to be reviewed (sort of like FlaggedRevs), but limit selected users to only a single edit? I can't imagine something like that would be hard to modify to pull from the list of Tor nodes to get its list of users.
I'll take a look at the TorBlock extension and the FlaggedRevs extension code and see what I can see.
Thank you, Derric Atzrott