Quoting Kirk Fletcher on Monday July 28, 2003:
| 
| I hadn't really thought of it before - but the only thing I can think
| of is that it displays the email address and so can be used to harvest
| addresses by spammers.
| 
| This of course can be done through whois anyway - but this has
| limits on number of hits from a specific IP.
| 
| That's all I can think of - perhaps I'm missing something else.

Well, that one is easily fixed.  Just don't show the email, or show it
in some kind of obfuscated format, or use a captcha challenge.

kim