[uf-discuss] XFN for email addresses?

[Ryan King]

On Jun 12, 2007, at 8:15 PM, Chris Messina wrote:

> Clearly the biggest issue I see with this scheme is the inability to
> link out *from* the email address. However, I'm not sure that this
> case nullifies the utility of such links.

And this is a quite large issue. It effectively removes the N in XFN.  
It's hard to build a network where some nodes can only by sinks[1].

-ryan

1. http://en.wikipedia.org/wiki/Degree_(graph_theory)#Sink