Two e-mails:

It’s not silly to ban them and it’s not something that the Wiki system is “
ripe for abuse” from. This is organized and repeated behavior to edit a
reference site.
US Congressional staffers who repeatedly blank content and engage in revert
wars and slanderous or libelous behavior violates Wikipedia code and by that
they should be IP banned until a system they can’t abuse is implemented.
What might be more interesting to acknowledge is that Wikipedia is giving
the public a glimpse at some of the ugliness of politics. Juvenile name
calling, re-inventing the truth, hiding criticism, libel, slander, etc. Some
may say that the majority is by junior staffers and even high school level
pages and wash it under the rug. More than likely this is just a reflection
of the atmosphere that exists in these offices. I say we consider Wikipedia
a honey pot for catching dishonorable officials and their staffs.

And:

As a frequent corner reader and software developer, I just had to make this comment after reading the latest in a long-string of wikipedia-bashing on the corner. Although it is without doubt that the wiki format in general, and wikipedia in particular, has some weaknesses that mean it will never be the reference work of choice for themes that are even moderately controversial, that same design means that it will for the foreseeable future be THE source of choice for encyclopedia-style articles on subjects that are outside of the mainstream.
For instance:
Derb can probably explain the P=NP question (a computer science topic). I seriously doubt even the latest version of Britannica has coverage of this… and yet wikipedia covers it in depth: ( http://en.wikipedia.org/wiki/Complexity_classes_P_and_NP) This is a common recurrence on wikipedia, especially on topics of mathematics, computer sciences, and some of the other “hard” sciences. Wikipedia’s coverage may not always be 100% accurate, but it is close (as close as other encyclopedias, on average) and significantly broader and deeper.
Anyway, just my 2 cents.