Anti-spambot hacks?

I was wondering if people had discussed on this list the possibility of adding anti-spambot features to hypermail, so an online hypermail archive wouldn't become grazing grounds' for spambots?

There are all sorts of examples of how this could be done out there, and I'm considering implementing some of the following here on my own copy of hypermail (I'll send in a patch when I'm done):

+ Turning "bre_at_mmedia.is" into "bre (at) mmedia (dot) is", or
      "bre _at_ mmedia. is", or random permutations of the above.
+ Wpoison style fake addresses inserted into real ones, as comments.
+ Replacing the _at_ character with something else, e.g. !

      (useful for mangling signatures w/o changing line lengths - nobody
      really uses bang paths anymore, do they? :-).

Comments?
Suggestions?

I realize that this won't stop the most determined address harvestors out there, but it slow them down a bit.

(For those worried about the features freeze: I don't expect this sort  of thing to be included in the "official" hypermail 2.0, unless the crowd  goes absolutely wild. I just thought you might be interested.)

-- 
Bjarni R. Einarsson                           PGP: 02764305, B7A3AB89
 bre_at_netverjar.is           -><-           http://www.mmedia.is/~bre/

Netverjar gegn ruslpósti: http://www.netverjar.is/baratta/ruslpostur/