The reason I voted id down is because I disagree with the idea that everything but HTML should be stripped from home nodes (on replies, I have no problem with it, but I didn't see that when I voted it down). Basically, a Monk's home node is their personal space (albeit freely granted by The Everything Development Company) and I can understand why they customize it. I can understand these things being security issues, but part of the problem here is striking a balance between diligence and freedom. Let's face it, one of the things that so many people find appealing about Perlmonks is the customization we can do.
Update: Aargh! After reading through some of the comments and seeing some of the stuff that's going on in the chatterbox, I have to say that I was wrong in the above post. Sometimes kids need to have their toys taken away :(