Mike Hearn wrote:
A better technique is to the CSS unicode bi-di attributes to convert
Mike Hearn xc.ivan@ekim
in the webpage to
Mike Hearn mike@navi.cx
in the rendered image the browser shows you. I came across this trick the other day and it's pretty neat. Boring old techniques like "username at host" are apparently useless against modern harvester bots, so maybe it's worth doing this.
Wow. You'd expect me to think of that one......
Still, that does not allow easy copy&paste, and it has unpleasant effect on web sites that actually USE bidi. Also, in order to be really effective, you would need to use RLO (else the strong directionality of the English letters would still make it left to right), and I'm not sure how widespread a support this has. Worst, this doesn't work for automatic clicks.
A better approach, in my humble opinion, is to use javascript. A simple method is visible in my site (a simple script that reorders the words, so that they do not appear as a full name anywhere unless you understand javascript). A more complex method is to RSA encode the email using a 15 bit key that is hard-wired into the decoding javascript. This method is impossible to work around without actually running a javascript engine on the harvester, which would open them to all sorts of fun abuse by us. :-)
Shachar