I'd think it'd be possible to make the code that operates the perlmonks.* web site do one set of behaviors if it's perlmonks.org, and another set if it's perlmonks.com, and another set if it's perlmonks.net.

It is possible, for sure. As everything else, hard to build on Everything, but certainly possible.

I'm not saying that's a GREAT idea, I'm just saying it's possible.

Just for the record: it'd be a BAD idea. But since I never visit the .com or .net sites, I wouldn't care :)