Seems pretty cool to me...

I haven't looked into it a great deal, but I can envision things like:
dropping in a link so that your mom can grab her favorite recipe off
the web and store it on your database instead of writing it
down/printing it out/having it disappear a year from now; or saving a
particular news article that will be here today, but possibly be gone
tomorrow.  The big interneto is so in flux that having your self-proxy
save pertinent info from a little added href at the bottom (top,
wherever) that knows what to do with the page being visited, hmmm...,
has vision.

Now, I'm sure this kind of thing has been done before, but, hey, you
get to decide how you want it, and in an expressive language at that.

Just 2c, only the 2c...

Todd